Fix blur width for landscape oriented stories.

app/src/main/res/layout/stories_post_fragment.xml

@@ -6,7 +6,7 @@
 
     <ImageView
         android:id="@+id/blur"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:importantForAccessibility="no"
         android:scaleType="centerCrop" />