Fix in news, first android notification service

android-app/app/src/main/AndroidManifest.xml

@@ -2,6 +2,7 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
     <application
         android:name=".HarheimerApplication"
@@ -16,6 +17,13 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <service
+            android:name=".notifications.HarheimerMessagingService"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="${applicationId}.files"