⚰️ Remove cleartext traffic (#321)

closes #320

Author: jheubuch

app/src/main/AndroidManifest.xml

@@ -18,7 +18,6 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.Traewelling"
-        android:usesCleartextTraffic="true"
         android:enableOnBackInvokedCallback="true"
         tools:targetApi="34">