feat(editor): Change Code Editor to show diffs in source control panel and during messaging.

Add merge view and minimap extensions to CodeMirror for enhanced code
editing capabilities. Increase Express JSON and URL-encoded payload
limits from default (100kb) to 50mb to support larger file operations
and git diffs.

package.json

@@ -46,11 +46,15 @@
     "@codemirror/lang-json": "^6.0.1",
     "@codemirror/lang-markdown": "^6.3.3",
     "@codemirror/lang-python": "^6.2.1",
+    "@codemirror/merge": "^6.11.1",
     "@codemirror/theme-one-dark": "^6.1.2",
+    "@replit/codemirror-minimap": "^0.5.2",
     "@tailwindcss/typography": "^0.5.16",
     "@uiw/react-codemirror": "^4.23.13",
     "@xterm/addon-clipboard": "^0.1.0",
+    "@xterm/addon-fit": "^0.10.0",
     "@xterm/addon-webgl": "^0.18.0",
+    "@xterm/xterm": "^5.5.0",
     "bcrypt": "^6.0.0",
     "better-sqlite3": "^12.2.0",
     "chokidar": "^4.0.3",
@@ -75,9 +79,7 @@
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.7",
     "tailwind-merge": "^3.3.1",
-    "ws": "^8.14.2",
-    "@xterm/xterm": "^5.5.0",
-    "@xterm/addon-fit": "^0.10.0"
+    "ws": "^8.14.2"
   },
   "devDependencies": {
     "@types/react": "^18.2.43",