Remove the option to set this app as the launcher

Causes bad behaviour and it was just a hack to begin with. Utilize the default android app pinning UI instead.

https://support.google.com/android/answer/9455138?hl=en-GB#zippy=%2Cif-youre-using-android-and-below

app/src/main/AndroidManifest.xml

@@ -30,7 +30,6 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
-                <category android:name="android.intent.category.HOME" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
             <intent-filter>