Add roundIcon to manifest

Author: fornwall

app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">