Correct the namespace and introduce an android specific namespace

composeApp/src/androidMain/AndroidManifest.xml

@@ -13,7 +13,7 @@
         android:theme="@android:style/Theme.Material.Light.NoActionBar">
         <activity
             android:exported="true"
-            android:name=".MainActivity">
+            android:name="ac.cord.auxiliary.android.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />