Android: Add "game" appCategory

Helps Android 14+ allocate more resources to the game.

Author: Mefiresu

android/app/src/main/AndroidManifest.xml

@@ -26,7 +26,8 @@
         android:label="@string/app_name" 
         android:icon="@mipmap/ic_launcher" 
         android:allowBackup="true" 
-        android:hardwareAccelerated="true">
+        android:hardwareAccelerated="true"
+        android:appCategory="game">
 
         <activity android:name="org.rems.rsdkv5.Launcher"
             android:exported="true"