Add crop to fit toggle to context menu. (#2107)

Signed-off-by: Timo K <toger5@hotmail.de>

src/video-grid/VideoTile.module.css

@@ -73,7 +73,7 @@ borders don't support gradients */
 .videoTile video {
   inline-size: 100%;
   block-size: 100%;
-  object-fit: cover;
+  object-fit: contain;
   background-color: var(--cpd-color-bg-subtle-primary);
   /* This transform is a no-op, but it forces Firefox to use a different
   rendering path, one that actually clips the corners of <video> elements into
@@ -89,6 +89,10 @@ borders don't support gradients */
   object-fit: contain;
 }
 
+.videoTile.cropVideo video {
+  object-fit: cover;
+}
+
 .videoTile.videoMuted video {
   display: none;
 }