refactor: capacitor 8 upgrade

frontend/app/android/app/build.gradle

@@ -1,8 +1,8 @@
 apply plugin: 'com.android.application'
 
 android {
-    namespace "de.anyschool.app"
-    compileSdk rootProject.ext.compileSdkVersion
+    namespace = "de.anyschool.app"
+    compileSdk = rootProject.ext.compileSdkVersion
     defaultConfig {
         applicationId "de.anyschool.app"
         minSdkVersion rootProject.ext.minSdkVersion
@@ -13,7 +13,7 @@ android {
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
              // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
-            ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
+            ignoreAssetsPattern = '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
         }
     }
     buildTypes {

frontend/app/android/app/src/main/AndroidManifest.xml

@@ -9,7 +9,7 @@
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true">
         <activity
-            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode|navigation|density"
             android:exported="true"
             android:label="@string/title_activity_main"
             android:launchMode="singleTask"