add backgroud

Author: tranleduy2000

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

@@ -17,6 +17,7 @@
 <TableRow xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
+    android:background="?selectableItemBackground"
     android:layout_height="wrap_content"
     android:orientation="horizontal">