Minor cleanups

stub/src/main/AndroidManifest.xml

@@ -10,13 +10,20 @@
         android:allowBackup="true"
         tools:ignore="AllowBackup">
 
-        <activity android:name="a.a">
+        <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
 
+        <provider
+            android:name=".FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+        </provider>
+
     </application>
 
 </manifest>

stub/src/main/java/a/a.java

@@ -1,6 +0,0 @@
-package a;
-
-import com.topjohnwu.magisk.MainActivity;
-
-public class a extends MainActivity {
-}