* MM-62312 - modal focus management; revamp quick switch channel modal!
* get quick switch test working
* configure the generic modal to accept refs to focus within and onhide to the origin element
* apply pr feedback, get modal element get autofocus, use id instead of ref
* update more direct channels modal to use generic modal
* fix unit tests and snapshots
* fix unit tests
* fix modal margin top to fit in smaller screens
* fix e2e test
* remove unnecesary onexited extra call
* fix e2e tests
* set correct label
* fix snapshots
* create helper function for sending custom focus event
* migrate quick switch modal to use new approach to focus
* migrate more direct channels modal to new approach
* fix snapshots
* fix types
* fix modal closing behavior
* fix snapshots
* fix cypress tests
* remove only
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Co-authored-by: Mattermost Build <build@mattermost.com>
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