[Video] Captions and alt text (#5009)

* video settings modal in composer

* show done button on web

* rm download options

* fix logic for showing settings button

* add language picker (wip)

* subtitle list with language select

* send captions & alt text with video when posting

* style "ensure you have selected a language" text

* include aspect ratio with video

* filter out captions where the lang is not set

* rm log

* fix label and add hint

* minor scrubber fix

src/lib/moderation/useLabelInfo.ts

@@ -1,9 +1,9 @@
 import {
-  ComAtprotoLabelDefs,
   AppBskyLabelerDefs,
-  LABELS,
-  interpretLabelValueDefinition,
+  ComAtprotoLabelDefs,
   InterpretedLabelValueDefinition,
+  interpretLabelValueDefinition,
+  LABELS,
 } from '@atproto/api'
 import {useLingui} from '@lingui/react'
 import * as bcp47Match from 'bcp-47-match'