Add ripple to review storage button.

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

@@ -81,10 +81,12 @@
 
     <TextView
         android:id="@+id/free_up_space"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:layout_marginBottom="16dp"
+        android:background="?selectableItemBackground"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:gravity="center"
         android:text="@string/preferences_storage__review_storage"
         android:textAllCaps="true"
         android:textColor="@color/core_ultramarine"