Feat/design improvements and minor bug fixes (#939)

* fix(shell): hide prompt options on desktop

* fix(chat): group continuous same-tool runs more consistently

Consecutive tool calls (Edit, Read, Grep, etc.) grouped inconsistently:

- The group threshold was 3, so a run of only 2 calls stayed ungrouped
  while a run of 3 collapsed — making two back-to-back edits look
  different from three.
- A run was broken by any interleaved message, including ones that render
  nothing (reasoning hidden when showThinking is off). Providers like
  Codex interleave hidden reasoning between tool calls, so visually
  continuous edits intermittently failed to group.

Lower TOOL_GROUP_THRESHOLD to 2 and skip non-rendered messages when
extending a run, so any 2+ consecutive same-tool calls collapse reliably.
ChatMessagesPane now passes showThinking into groupConsecutiveTools.

* fix(chat): stabilize message scroll controls

* fix: update command menu positioning

* fix(chat): refine load all overlay behavior

* fix(chat): hide load all prompt after final page

* fix(chat): remove auto scroll quick setting

* fix(chat): unify messages and composer into centered column

Constrain both ChatMessagesPane content and ChatComposer to the same
max-w-3xl centered column. Previously only
the composer had a max-width, causing messages to fill the full width
while the input stayed narrow, making them visually misaligned with
large empty gutters on either side.

* style(ui): rework light/dark theme to make it visually consistent

Rework the color system around warm neutrals and route hardcoded
surfaces through theme tokens for consistency.

- Theme tokens (index.css, ThemeContext): warm cream light mode and
  neutral charcoal dark mode, replacing the pure-white/blue-tinted
  palette; update PWA theme-color meta
- Code blocks: soft grey background in light mode via
  oneLight/oneDark, and drop the Tailwind Typography <pre> shell that
  framed the highlighter in a dark box
- Dropdowns/panels: convert CommandMenu, Quick Settings, and the JSON
  response block from hardcoded gray/slate to popover/muted/border
  tokens
- Git panel: Publish button purple -> primary blue
- Composer: drop top padding so the input sits flush with the thread

* fix: use app theme for code editor

* style(chat): unify composer toolbar heights and declutter slash-command modal

- Composer: give the permission-mode and token-usage buttons a fixed
  h-8 so every bottom-toolbar control shares one height
- CommandResultModal: replace the blue gradient header (gradient fill,
  glow blobs, blue eyebrow + icon chip) with a clean neutral header on
  popover/muted tokens

* fix(chat): header ellipsis, Codex logo on light theme, portal copy menu

- MainContentTitle: truncate the session title with an ellipsis instead
  of horizontal-scrolling it
- MessageComponent: use text-foreground for the provider logo chip so the
  currentColor Codex/OpenAI mark is visible on the light theme
- MessageCopyControl: render the copy-format dropdown in a portal so it
  escapes the chat message's `contain: paint` clip box; anchor it to the
  trigger, flip above near the viewport bottom, close on scroll/resize

* style(mcp): remove purple accents and portal the server form modal

- Replace the purple provider-button colors, heading icon, and form
  submit button with the primary token (no purple in the MCP UI)
- Portal the add/edit MCP server modal to document.body so its fixed
  overlay covers the full viewport, fixing the white band at the top
  caused by the Settings dialog's transformed tab content becoming the
  containing block

* style(ui): use Merriweather serif for chat text and Encode Sans for the rest of the UI

* fix: align activity indicator with composer input width

Wrap ActivityIndicator in the same mx-auto max-w-3xl container as the
text input so the "Analyzing…" label and Stop button stay within the
input's boundaries instead of spanning the full window width.

* style: improve thinking and stop button placements

* style(auth): modernize login, setup, and onboarding screens

* fix(chat): correct invalid dark-mode hover on AskUserQuestion options

* fix: remove unnecessary auto expand tools

* fix: resolve coderabbit comments

* fix(chat): widen chat layout and sidebar titles

* fix(branding): update CloudCLI wordmark styling

---------

Co-authored-by: Simos Mikelatos <simosmik@gmail.com>

src/components/chat/view/subcomponents/MessageComponent.tsx

@@ -1,4 +1,4 @@
-import { memo, useEffect, useMemo, useRef, useState } from 'react';
+import { memo, useMemo, useRef } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import SessionProviderLogo from '../../../llm-logo-provider/SessionProviderLogo';
@@ -30,7 +30,6 @@ type MessageComponentProps = {
   onFileOpen?: (filePath: string, diffInfo?: unknown) => void;
   onShowSettings?: () => void;
   onGrantToolPermission?: (suggestion: ClaudePermissionSuggestion) => PermissionGrantResult | null | undefined;
-  autoExpandTools?: boolean;
   showRawParameters?: boolean;
   showThinking?: boolean;
   selectedProject?: Project | null;
@@ -45,7 +44,7 @@ type InteractiveOption = {
 
 const COPY_HIDDEN_TOOL_NAMES = new Set(['Bash', 'Edit', 'Write', 'ApplyPatch']);
 
-const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, autoExpandTools, showRawParameters, showThinking, selectedProject, provider }: MessageComponentProps) => {
+const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, showRawParameters, showThinking, selectedProject, provider }: MessageComponentProps) => {
   const { t } = useTranslation('chat');
   const isGrouped = prevMessage && prevMessage.type === message.type &&
     ((prevMessage.type === 'assistant') ||
@@ -53,7 +52,6 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
       (prevMessage.type === 'tool') ||
       (prevMessage.type === 'error'));
   const messageRef = useRef<HTMLDivElement | null>(null);
-  const [isExpanded, setIsExpanded] = useState(false);
   const userCopyContent = String(message.content || '');
   const formattedMessageContent = useMemo(
     () => formatUsageLimitText(String(message.content || '')),
@@ -72,32 +70,6 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
     !message.isThinking;
 
 
-  useEffect(() => {
-    const node = messageRef.current;
-    if (!autoExpandTools || !node || !message.isToolUse) return;
-
-    const observer = new IntersectionObserver(
-      (entries) => {
-        entries.forEach((entry) => {
-          if (entry.isIntersecting && !isExpanded) {
-            setIsExpanded(true);
-            const details = node.querySelectorAll<HTMLDetailsElement>('details');
-            details.forEach((detail) => {
-              detail.open = true;
-            });
-          }
-        });
-      },
-      { threshold: 0.1 }
-    );
-
-    observer.observe(node);
-
-    return () => {
-      observer.unobserve(node);
-    };
-  }, [autoExpandTools, isExpanded, message.isToolUse]);
-
   const formattedTime = useMemo(() => new Date(message.timestamp).toLocaleTimeString(), [message.timestamp]);
   const shouldHideThinkingMessage = Boolean(message.isThinking && !showThinking);
 
@@ -115,7 +87,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
         /* User message bubble on the right */
         <div className="flex w-full items-end space-x-0 sm:w-auto sm:max-w-[85%] sm:space-x-3 md:max-w-md lg:max-w-lg xl:max-w-xl">
           <div className="group flex-1 rounded-2xl rounded-br-md bg-blue-600 px-3 py-2 text-white shadow-sm sm:flex-initial sm:px-4">
-            <div dir="auto" className="whitespace-pre-wrap break-words text-sm">
+            <div dir="auto" className="whitespace-pre-wrap break-words font-serif text-sm">
               {message.content}
             </div>
             {message.images && message.images.length > 0 && (
@@ -166,7 +138,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
                   🔧
                 </div>
               ) : (
-                <div className="flex h-8 w-8 flex-shrink-0 items-center justify-center rounded-full p-1 text-sm text-white">
+                <div className="flex h-8 w-8 flex-shrink-0 items-center justify-center rounded-full p-1 text-sm text-foreground">
                   <SessionProviderLogo provider={provider} className="h-full w-full" />
                 </div>
               )}
@@ -194,7 +166,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
               <>
                 <div className="flex flex-col">
                   <div className="flex flex-col">
-                    <Markdown className="prose prose-sm max-w-none dark:prose-invert">
+                    <Markdown className="prose prose-sm max-w-none font-serif dark:prose-invert">
                       {String(message.displayText || '')}
                     </Markdown>
                   </div>
@@ -210,7 +182,6 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
                     onFileOpen={onFileOpen}
                     createDiff={createDiff}
                     selectedProject={selectedProject}
-                    autoExpandTools={autoExpandTools}
                     showRawParameters={showRawParameters}
                     rawToolInput={typeof message.toolInput === 'string' ? message.toolInput : undefined}
                     isSubagentContainer={message.isSubagentContainer}
@@ -233,7 +204,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
                         <span className="text-xs font-medium text-red-700 dark:text-red-300">{t('messageTypes.error')}</span>
                       </div>
                       <div className="relative text-sm text-red-900 dark:text-red-100">
-                        <Markdown className="prose prose-sm prose-red max-w-none dark:prose-invert">
+                        <Markdown className="prose prose-sm prose-red max-w-none font-serif dark:prose-invert">
                           {String(message.toolResult.content || '')}
                         </Markdown>
                       </div>
@@ -250,7 +221,6 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
                         onFileOpen={onFileOpen}
                         createDiff={createDiff}
                         selectedProject={selectedProject}
-                        autoExpandTools={autoExpandTools}
                       />
                     </div>
                   )
@@ -342,7 +312,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
               <Reasoning defaultOpen={false}>
                 <ReasoningTrigger />
                 <ReasoningContent>
-                  <Markdown className="prose prose-sm prose-gray max-w-none dark:prose-invert">
+                  <Markdown className="prose prose-sm prose-gray max-w-none font-serif dark:prose-invert">
                     {message.content}
                   </Markdown>
                   <div className="mt-3 flex items-center text-[11px]">
@@ -377,15 +347,15 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
 
                       return (
                         <div className="my-2">
-                          <div className="mb-2 flex items-center gap-2 text-sm text-gray-600 dark:text-gray-400">
+                          <div className="mb-2 flex items-center gap-2 text-sm text-muted-foreground">
                             <svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                               <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z" />
                             </svg>
                             <span className="font-medium">{t('json.response')}</span>
                           </div>
-                          <div className="overflow-hidden rounded-lg border border-gray-600/30 bg-gray-800 dark:border-gray-700 dark:bg-gray-900">
+                          <div className="overflow-hidden rounded-lg border border-border bg-muted">
                             <pre className="overflow-x-auto p-4">
-                              <code className="block whitespace-pre font-mono text-sm text-gray-100 dark:text-gray-200">
+                              <code className="block whitespace-pre font-mono text-sm text-foreground">
                                 {formatted}
                               </code>
                             </pre>
@@ -399,7 +369,7 @@ const MessageComponent = memo(({ message, prevMessage, createDiff, onFileOpen, a
 
                   // Normal rendering for non-JSON content
                   return message.type === 'assistant' ? (
-                    <Markdown className="prose prose-sm prose-gray max-w-none dark:prose-invert">
+                    <Markdown className="prose prose-sm prose-gray max-w-none font-serif dark:prose-invert">
                       {content}
                     </Markdown>
                   ) : (