VideoBrowserList: fix marker seen overlapping sd

The seen marker is constrained to the start of the parent or the end of
the network marker. Since adding seperate markers for otg or sd, the
seen marker can overlap them. To fix this, it set to the end of the
parent.

application/vlc-android/res/layout/video_list_card.xml

@@ -180,15 +180,15 @@
                         android:id="@+id/ml_item_seen"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_marginStart="8dp"
                         android:layout_marginTop="4dp"
+                        android:layout_marginEnd="4dp"
                         vlc:layout_goneMarginStart="4dp"
                         android:background="@drawable/rounded_corners_black_more_transparent"
                         android:padding="3dp"
                         android:visibility="@{seen == 0L ? View.GONE : View.VISIBLE, default=gone}"
                         tools:visibility="visible"
-                        vlc:layout_constraintStart_toEndOf="@+id/network_media"
                         vlc:layout_constraintTop_toTopOf="parent"
+                        vlc:layout_constraintEnd_toEndOf="parent"
                         vlc:srcCompat="@drawable/ic_check" />
 
                 <ImageView