* Close the attachment preview screen ASAP when sending media with the send queue is enabled
* When the send queue FF is not enabled make sure to dismiss the screen after the media has been sent
* Make sure we get a scaled thumbnail from videos too, not only for images
* Unify several state holders into `SendActionState`.
* Fix lint issues, add `Flow.firstInstanceOf` extension fun
* Update screenshots
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Co-authored-by: ElementBot <android@element.io>
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