Consolidate video state into a single asset-scoped provider, and reduce
dependency on global state generally. Overall this should fix a few
timing issues and race conditions with videos specifically, and make
future changes in this area easier.
* feat: video player
* use remote asset id in local query
* fix: error from pre-caching beyond total assets
* fix: flipped local videos
* incorrect aspect ratio on iOS
* ignore other storage id during equals check
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Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>