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/locales/it.json

@@ -33,6 +33,7 @@
   "column.home": "Home",
   "column.mutes": "Utenti silenziati",
   "column.notifications": "Notifiche",
+  "column.pins": "Pinned toot",
   "column.public": "Timeline federata",
   "column_back_button.label": "Indietro",
   "column_header.hide_settings": "Hide settings",
@@ -109,6 +110,7 @@
   "navigation_bar.info": "Informazioni estese",
   "navigation_bar.logout": "Logout",
   "navigation_bar.mutes": "Utenti silenziati",
+  "navigation_bar.pins": "Pinned toots",
   "navigation_bar.preferences": "Impostazioni",
   "navigation_bar.public_timeline": "Timeline federata",
   "notification.favourite": "{name} ha apprezzato il tuo post",
@@ -193,6 +195,15 @@
   "upload_button.label": "Aggiungi file multimediale",
   "upload_form.undo": "Annulla",
   "upload_progress.label": "Sto caricando...",
+  "video.close": "Close video",
+  "video.exit_fullscreen": "Exit full screen",
+  "video.expand": "Expand video",
+  "video.fullscreen": "Full screen",
+  "video.hide": "Hide video",
+  "video.mute": "Mute sound",
+  "video.pause": "Pause",
+  "video.play": "Play",
+  "video.unmute": "Unmute sound",
   "video_player.expand": "Espandi video",
   "video_player.toggle_sound": "Attiva suono",
   "video_player.toggle_visible": "Attiva visibilità",