feat: integrate automatic update checks and enhance settings UI

- Added functionality for automatic update checks in the settings page, allowing users to enable or disable this feature.
- Integrated app version display and update availability notifications.
- Updated settings store to manage auto-check updates state and handle version migration.
- Enhanced layout with a new card for update settings, improving user experience and accessibility.

.gitignore

@@ -39,3 +39,4 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+~/.tauri/ollahub.key