merge: fix connection issues and locale bugs (v1.7.1)

## Changes

• Fixed: App crash on Android 9 (Issue #15)
• Fixed: German text showing despite English language setting
• Improved: Sync connection stability (10s timeout)
• Improved: Code quality (removed 65 lines)

## Technical Details

- Increased socket timeout from 1s to 10s
- Fixed hardcoded German strings in UI
- Enhanced locale support with AppCompatDelegate
- Removed unreliable VPN bypass code

fastlane/metadata/android/de-DE/changelogs/18.txt

@@ -1,6 +1,5 @@
-• Behoben: App-Absturz auf Android 9 (Issue #15) - Danke an @roughnecks
+• Behoben: App-Absturz auf Android 9  - Thanks to @roughnecks  
-  - WorkManager Expedited Work Kompatibilität (getForegroundInfo)
+• Behoben: Deutsche Texte trotz englischer App-Sprache
-  - Kernel-VPN-Kompatibilität (Wireguard tun/wg Interfaces)
+• Verbessert: Sync-Verbindungsstabilität
-• Verbessert: Stabilität und Verbindungsverwaltung
+• Verbessert: Code-Qualität und Zuverlässigkeit
-• Technisch: Optimierter HTTP-Connection-Lebenszyklus
 

fastlane/metadata/android/en-US/changelogs/18.txt

@@ -1,5 +1,4 @@
-• Fixed: App crash on Android 9 (Issue #15) - Thanks to @roughnecks
+• Fixed: App crash on Android 9 - Thanks to @roughnecks  
-  - WorkManager expedited work compatibility (getForegroundInfo)
+• Fixed: German text appearing despite English language setting
-  - Kernel-VPN compatibility (Wireguard tun/wg interfaces)
+• Improved: Sync connection stability (longer timeout)
-• Improved: Stability and connection management
+• Improved: Code quality and reliability
-• Technical: Optimized HTTP connection lifecycle