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/tauri.conf.json

@@ -13,10 +13,12 @@
     "windows": [
       {
         "title": "OllaHub",
-        "width": 800,
-        "height": 600,
+        "width": 1200,
+        "height": 800,
         "resizable": true,
-        "fullscreen": false
+        "fullscreen": false,
+        "decorations": false,
+        "transparent": false
       }
     ],
     "security": {