rename gravity array to gravities

Author: tibbi

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

@@ -93,7 +93,7 @@
                 android:layout_height="wrap_content"
                 android:layout_alignParentEnd="true"
                 android:layout_alignParentRight="true"
-                android:entries="@array/gravity"/>
+                android:entries="@array/gravities"/>
 
         </RelativeLayout>
 

app/src/main/res/values/array.xml

@@ -7,7 +7,7 @@
         <item>@string/extra_large</item>
     </string-array>
 
-    <string-array name="gravity" translatable="false">
+    <string-array name="gravities" translatable="false">
         <item>@string/left</item>
         <item>@string/center</item>
         <item>@string/right</item>