3rd party embed player (#2217)

* Implement embed player for YT, spotify, and twitch

* fix: handle blur event

* fix: use video dimensions for twitch

* fix: remove hack (?)

* fix: remove origin whitelist (?)

* fix: prevent ads from opening in browser

* fix: handle embeds that don't have a thumb

* feat: handle dark/light mode

* fix: ts warning

* fix: adjust height of no-thumb label

* fix: adjust height of no-thumb label

* fix: remove debug log, set collapsable to false for player view

* fix: fix dimensions "flash"

* chore: remove old youtube link test

* tests: add tests

* fix: thumbless embed position when loading

* fix: remove background from webview

* cleanup embeds (almost)

* more refactoring

- Use separate layers for player and overlay to prevent weird sizing issues
- Be sure the image is not visible under the player
- Clean up some

* cleanup styles

* parse youtube shorts urls

* remove debug

* add soundcloud tracks and sets (playlists)

* move logic into `ExternalLinkEmbed`

* border radius for yt player on native

* fix styling on web

* allow scrolling in webview on android

* remove unnecessary check

* autoplay yt on web

* fix tests after adding autoplay

* move `useNavigation` to top of component

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Co-authored-by: Paul Frazee <pfrazee@gmail.com>

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