fix: set default FCM icon and color on manifest

Author: jvsena42

app/src/main/AndroidManifest.xml

@@ -146,13 +146,13 @@
              See https://goo.gl/l4GJaQ -->
         <meta-data
             android:name="com.google.firebase.messaging.default_notification_icon"
-            android:resource="@drawable/ic_notification" />
+            android:resource="@drawable/ic_bitkit_outlined" />
         <!-- Set color used with incoming notification messages.
              This is used when no color is set for the incoming notification message.
              See https://goo.gl/6BKBk7 -->
         <meta-data
             android:name="com.google.firebase.messaging.default_notification_color"
-            android:resource="@color/teal_200" />
+            android:resource="@color/brand" />
         <!-- Set default notifications channel for Firebase. -->
         <meta-data
             android:name="com.google.firebase.messaging.default_notification_channel_id"