Reached Clean State, NO FUNCTIONALITY ADDED

Only applied some checkstyle and reformated code.
Also modified some warnings

app/src/main/AndroidManifest.xml

@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".GameSelection">
+        <activity android:name=".activities.GameSelection">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />