lint: fix the image ic_favorite.png varies significantly in its density-independent (dip) size across the various density versions (ic_ needs to comply with standard icon sizes)

src/main/res/layout/grid_image.xml

@@ -43,7 +43,7 @@
             android:layout_height="wrap_content"
             android:layout_gravity="top|end"
             android:layout_margin="@dimen/standard_quarter_margin"
-            android:src="@drawable/ic_favorite"
+            android:src="@drawable/badge_favorite"
             android:contentDescription="@string/favorite_icon" />
 
         <ImageView

src/main/res/layout/grid_item.xml

@@ -43,7 +43,7 @@
             android:layout_height="wrap_content"
             android:layout_gravity="top|end"
             android:layout_margin="@dimen/standard_quarter_margin"
-            android:src="@drawable/ic_favorite"
+            android:src="@drawable/badge_favorite"
             android:contentDescription="@string/favorite_icon"/>
 
         <ImageView

src/main/res/layout/list_item.xml

@@ -61,7 +61,7 @@
                 android:layout_marginRight="@dimen/standard_quarter_margin"
                 android:layout_marginEnd="@dimen/standard_quarter_margin"
                 android:contentDescription="@string/favorite"
-                android:src="@drawable/ic_favorite" />
+                android:src="@drawable/badge_favorite" />
 
             <ImageView
                 android:id="@+id/keptOfflineIcon"