feat: integrate TitleBar component across chat, settings, and tasks pages

- Added a new TitleBar component to enhance the UI consistency across chat, settings, and tasks pages.
- Updated layout structure to support responsive design and improve user experience.
- Adjusted container styles to ensure proper overflow handling and visual appeal.
- Enhanced Tauri configuration for improved window dimensions and capabilities.

src-tauri/capabilities/default.json

@@ -6,6 +6,13 @@
     "main"
   ],
   "permissions": [
-    "core:default"
+    "core:default",
+    "core:window:allow-start-dragging",
+    "core:window:allow-start-resize-dragging",
+    "core:window:allow-minimize",
+    "core:window:allow-maximize",
+    "core:window:allow-unmaximize",
+    "core:window:allow-close",
+    "core:window:allow-is-maximized"
   ]
 }