Redesign video player (#4911)

* Redesign video player

* Use new video player on static public pages too

* Use media gallery component on static public pages too

* Pause video when hiding it

* Full-screen sizing on WebKit

* Add aria labels to video player buttons

* Display link card on public status page

* Fix fullscreen from modal sizing issue

* Remove contain: strict property to fix fullscreen from columns

app/javascript/mastodon/features/ui/util/async-components.js

@@ -98,6 +98,10 @@ export function VideoPlayer () {
   return import(/* webpackChunkName: "status/video_player" */'../../../components/video_player');
 }
 
+export function Video () {
+  return import(/* webpackChunkName: "features/video" */'../../video');
+}
+
 export function EmbedModal () {
   return import(/* webpackChunkName: "modals/embed_modal" */'../components/embed_modal');
 }