Fix cell heights

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

@@ -18,7 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     android:background="@drawable/item_background"
     android:orientation="vertical">
 

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

@@ -18,7 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     android:background="@drawable/item_background"
     android:orientation="vertical">
 

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

@@ -18,7 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 <org.floens.chan.ui.cell.PostStubCell xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     android:background="@drawable/item_background"
     android:orientation="horizontal"
     tools:ignore="UseCompoundDrawables,ContentDescription">