feat: add QTTR values feature to member area

- Implemented QTTR values screen in the member area with data fetching and display.
- Added new API endpoint for QTTR values retrieval.
- Created a new view model for managing QTTR data state.
- Updated navigation to include QTTR section.
- Enhanced error handling and loading states for QTTR data.
- Adjusted server-side logic to import QTTR values from external source.
- Updated Android app version and adjusted build configurations.
- Added necessary UI components and styling for QTTR display.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "harheimertc-website",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "description": "Moderne Webseite für den Harheimer Tischtennis Club",
   "private": true,
   "type": "module",