android: Request QUERY_ALL_PACKAGES permission

This is required when targeting Android 11 (API 30) in order to see all
packages, which we use to allow selecting apps ex-/included from VPN
profiles and for the EAP-TNC use case.

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

@@ -24,6 +24,9 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+    <!-- necessary to allow users to select ex-/included apps and EAP-TNC -->
+    <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"
+        tools:ignore="QueryAllPackagesPermission" />
 
     <application
         android:name=".logic.StrongSwanApplication"