Small layout improvement

app/src/main/res/layout-w600dp-land/activity_view.xml

@@ -15,6 +15,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             app:layout_constraintEnd_toStartOf="@+id/content_separator"
+            app:layout_constraintHorizontal_weight="1"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
@@ -32,6 +33,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_weight="1"
             app:layout_constraintStart_toEndOf="@id/content_separator"
             app:layout_constraintTop_toTopOf="parent" />