Do not export internal activities

Author: jonalmeida

app/src/main/AndroidManifest.xml

@@ -49,12 +49,7 @@
             android:supportsPictureInPicture="true"
             android:configChanges="keyboard|keyboardHidden|mcc|mnc|orientation|screenSize|locale|layoutDirection|smallestScreenSize|screenLayout"
             android:windowSoftInputMode="adjustResize"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
+            android:exported="false">
         </activity>
 
         <activity android:name=".BrowserTestActivity"
@@ -116,6 +111,12 @@
             android:exported="true"
             android:excludeFromRecents="true" >
 
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />