Increase thumbnail size on tablets

Clover/app/src/main/res/layout/cell_post.xml

@@ -23,8 +23,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
     <org.floens.chan.ui.view.ThumbnailView
         android:id="@+id/thumbnail_view"
-        android:layout_width="72dp"
-        android:layout_height="72dp"
+        android:layout_width="@dimen/cell_post_thumbnail_size"
+        android:layout_height="@dimen/cell_post_thumbnail_size"
         android:gravity="top" />
 
     <TextView

Clover/app/src/main/res/values-sw600dp/dimens.xml

@@ -22,4 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     <integer name="grid_card_max_spans">5</integer>
 
     <dimen name="reply_height_loading">400dp</dimen>
+
+    <dimen name="cell_post_thumbnail_size">100dp</dimen>
 </resources>

Clover/app/src/main/res/values/dimens.xml

@@ -24,4 +24,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     <integer name="grid_card_max_spans">-1</integer>
 
     <dimen name="reply_height_loading">250dp</dimen>
+
+    <dimen name="cell_post_thumbnail_size">72dp</dimen>
 </resources>