* Refine styles of menus, toasts, popovers, and modals
This is a reintroduction of https://github.com/matrix-org/matrix-react-sdk/pull/12247, with the difference that modal styles have now been refreshed as well.
* Restore the fixed heights of some dialogs
* Fix formatting and flaky screenshot
* Use h1 as first heading in dialogs
The dialog should be modal and therefore the only content active
on the screen, so the title of the dialog should be the top level.
Update snapshots & tests appropriately.
* Just customise the letter spacing on dialog titles
* Fix: Details element wide clickable area
* LogoutDialog-test.tsx snapshot updated
* Fixed open state clickable area for dropdowns
* Advanced changed to advanced
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Co-authored-by: Manan Sadana <manan.sadana@cnhteam.onmicrosoft.com>
Co-authored-by: Florian Duros <florianduros@element.io>
