Round snackbar corners

app/src/main/res/drawable/snackbar_background.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
-    <corners android:radius="@dimen/design_snackbar_background_corner_radius" />
+    <corners android:radius="@dimen/card_radius" />
     <solid android:color="?attr/colorSurface" />
 </shape>