fix(ui): remove mobile bottom nav, unify processing indicator, and improve tooltip behavior on mobile (#632)

* fix: update tooltip component

* fix: remove the mobile navigation component

In addition,
- the sidebar is also updated to take full space
- the terminal shortcuts in shell are updated to not interfere with the
shell content.

* fix: remove mobile nav component

* fix: remove "Thinking..." indicator

In addition, the claude status component has been restyled to be more
compact and less obtrusive.
- The type and prop arguments for ChatMessagesPane have been updated to
remove the isLoading prop, which was only used to control the display of
 the AssistantThinkingIndicator.

* fix: show elapsed time only when loading

---------

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

src/components/git-panel/view/branches/BranchesView.tsx

@@ -167,7 +167,7 @@ export default function BranchesView({
   }
 
   return (
-    <div className={`flex flex-1 flex-col overflow-hidden ${isMobile ? 'pb-mobile-nav' : ''}`}>
+    <div className="flex flex-1 flex-col overflow-hidden">
       {/* Create branch button */}
       <div className="flex items-center justify-between border-b border-border/40 px-4 py-2.5">
         <span className="text-sm text-muted-foreground">

src/components/git-panel/view/changes/ChangesView.tsx

@@ -151,7 +151,7 @@ export default function ChangesView({
 
       {!gitStatus?.error && <FileStatusLegend isMobile={isMobile} />}
 
-      <div className={`flex-1 overflow-y-auto ${isMobile ? 'pb-mobile-nav' : ''}`}>
+      <div className="flex-1 overflow-y-auto">
         {isLoading ? (
           <div className="flex h-32 items-center justify-center">
             <RefreshCw className="h-5 w-5 animate-spin text-muted-foreground" />

src/components/git-panel/view/history/HistoryView.tsx

@@ -47,7 +47,7 @@ export default function HistoryView({
   );
 
   return (
-    <div className={`flex-1 overflow-y-auto ${isMobile ? 'pb-mobile-nav' : ''}`}>
+    <div className="flex-1 overflow-y-auto">
       {isLoading ? (
         <div className="flex h-32 items-center justify-center">
           <RefreshCw className="h-5 w-5 animate-spin text-muted-foreground" />