* New channel menu using new menu system
* fix e2e-tests
* remove extraneous separator
* lint fix
* fix test after merge
* update to pass properties to first menu item
* fix e2etest
* refactor: Update channel header menu items to use const event handlers
* refactor: Extract plugin item click handler in channel header menu
* refactor: Improve error handling and button click handlers in mobile channel header plugins
* lint fixes
* updates for code reveiw
* run i18n-extract
* fix unit test
* fix: Close channel dropdown menu by clicking channel header title
* fix: Use keyboard escape to close channel dropdown menu in e2e tests
* fix cypress test
* fix: Resolve MUI Menu component fragment rendering issue
* cleanup
* remove unneccessary css
* fixing testing issues
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