Add some horizontal space for the computers list.

Change-Id: I4dffdf3477e4c98420ef3dee9990485c70d7a1ec

android/sdremote/res/layout/fragment_computers_list.xml

@@ -35,6 +35,9 @@
 
     <ListView
         android:id="@android:id/list"
+        android:scrollbarStyle="outsideOverlay"
+        android:paddingLeft="@dimen/padding_horizontal_list"
+        android:paddingRight="@dimen/padding_horizontal_list"
         android:layout_width="match_parent"
         android:layout_height="match_parent"/>
 

android/sdremote/res/values/dimens.xml

@@ -16,6 +16,7 @@
     <dimen name="padding_section_item">8dp</dimen>
     <dimen name="padding_empty_slide_layout">16dp</dimen>
 
+    <dimen name="padding_horizontal_list">16dp</dimen>
     <dimen name="padding_horizontal_list_item">8dp</dimen>
     <dimen name="padding_horizontal_connection_layout">40dp</dimen>
     <dimen name="padding_horizontal_action_bar_button">20dp</dimen>