feat(android): implement file picker for data export

- Add @capawesome/capacitor-file-picker dependency
- Update DataExportSection UI text to reflect new file picker behavior
- Implement file picker in CapacitorPlatformService
- Add debug logging for path handling
- Fix logger to show messages in Capacitor environment

WIP: File path handling still needs refinement

package.json

@@ -49,6 +49,7 @@
     "@capacitor/core": "^6.2.0",
     "@capacitor/filesystem": "^6.0.0",
     "@capacitor/ios": "^6.2.0",
+    "@capawesome/capacitor-file-picker": "^6.2.0",
     "@dicebear/collection": "^5.4.1",
     "@dicebear/core": "^5.4.1",
     "@ethersproject/hdnode": "^5.7.0",