🎨 ✨ 🚀 Overhaul UI/UX with comprehensive design system improvements

✨ Features added:

- 🔍 Implement functional search in header navigation
- ⚙️ Add basic user settings page
- 📱 Make dashboard fully responsive

🔧 Enhancements:

- 🎭 Standardize CSS with consistent theming across components
- 🧹 Remove unused CSS for better performance
- 📊 Improve dashboard layout and visual hierarchy
- 📦 Redesign last block widget for better usability

💅 This commit introduces a cohesive design system with functional design-token components for a more ✨ polished user experience.

package.json

@@ -31,13 +31,13 @@
     "@tsconfig/node22": "^22.0.0",
     "@types/markdown-it": "^14.1.2",
     "@types/node": "^22.13.10",
-    "electron": "^34.3.2",
+    "electron": "^34.3.3",
     "electron-builder": "^25.1.8",
     "electron-vite": "^3.0.0",
-    "lightningcss": "^1.29.2",
-    "sass-embedded": "^1.85.1",
+    "lightningcss": "^1.29.3",
+    "sass-embedded": "^1.86.0",
     "typescript": "~5.6.3",
-    "vite": "^6.2.1"
+    "vite": "^6.2.2"
   },
   "dependencies": {
     "@lit-labs/motion": "^1.0.8",