Center thumbnail in video grid element

vlc-android/res/layout/video_grid_card.xml

@@ -70,15 +70,16 @@
                 android:layout_height="@dimen/grid_card_thumb_height"
                 android:background="?attr/background_default_darker"
                 android:scaleType="@{scaleType}"
+                android:layout_gravity="center_horizontal"
                 vlc:media="@{media}"
                 vlc:binding="@{holder.binding}"
                 android:src="@{cover}"/>
 
             <LinearLayout
-                android:layout_width="match_parent"
+                android:layout_width="@dimen/grid_card_thumb_width"
                 android:layout_height="wrap_content"
-                android:layout_marginLeft="@dimen/half_default_margin"
                 android:layout_marginTop="4dp"
+                android:layout_gravity="center_horizontal"
                 android:gravity="center_vertical"
                 android:orientation="horizontal">
 
@@ -108,10 +109,9 @@
             </LinearLayout>
 
             <LinearLayout
-                android:layout_width="match_parent"
+                android:layout_width="@dimen/grid_card_thumb_width"
                 android:layout_height="wrap_content"
-                android:layout_marginLeft="@dimen/half_default_margin"
-                android:layout_marginRight="@dimen/half_default_margin"
+                android:layout_gravity="center_horizontal"
                 android:layout_marginTop="4dp"
                 android:orientation="horizontal">
 

vlc-android/res/values-sw600dp/dimens.xml

 <resources>
-    <dimen name="grid_card_width">200dp</dimen>
+    <dimen name="grid_card_width">210dp</dimen>
     <dimen name="grid_card_height">200dp</dimen>
     <dimen name="grid_card_thumb_width">200dp</dimen>
     <dimen name="grid_card_thumb_height">125dp</dimen>

vlc-android/res/values/dimens.xml

@@ -5,7 +5,7 @@
     <dimen name="directory_browser_item_size">40dp</dimen>
     <dimen name="listview_bottom_padding">10dp</dimen>
     <dimen name="listview_side_padding">5dp</dimen>
-    <dimen name="grid_card_width">160dp</dimen>
+    <dimen name="grid_card_width">170dp</dimen>
     <dimen name="grid_card_height">160dp</dimen>
     <dimen name="grid_card_thumb_width">160dp</dimen>
     <dimen name="grid_card_thumb_height">100dp</dimen>