Fixed bug: app:srcCompat doesn't work for widget. Restored android:src.

app/src/main/res/layout/widget_tasks.xml

@@ -1,12 +1,10 @@
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/rl_widget_task_group_root"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical">
 
-
     <ImageView
         android:layout_width="28dp"
         android:layout_height="28dp"
@@ -15,7 +13,7 @@
         android:layout_marginStart="12dp"
         android:background="@drawable/border_img_view"
         android:visibility="invisible"
-        app:srcCompat="@drawable/done"
+        android:src="@drawable/done"
         android:id="@+id/widget_done"/>
 
     <ImageView
@@ -50,7 +48,4 @@
         android:background="@color/lightBlue"
         android:layout_alignBottom="@id/tv_widget_task_name"/>
 
-
-
-
 </RelativeLayout>