fixes #82668

* working on the left side

* flow direction working

* flow direction

* use menubar visibility to set setting

* hide titlebar on the web

* fix hover feedback

* remove font declarations from menu.css

* remove decalarations from shell.css

fixes #64741

* Revert "Revert "Make menubar its own widget and add overflow (#63954)""

This reverts commit fa87e67e.

* add checks for whencustom menubar is not present

This reverts commit aedd4402.

* working state

* fix keybindings and add compact submenu mode

* fix blur

* fix mnemonics in overflow menu

* fix issues with window resizing

* switch to ellipsis

* snapshot

* checked items, disposal, restrict heights

* Addressing feedback

* Minor style updates for menu

The css3 `transform` and `transition` properties are now widely supported. I do not believe we need to ship vendor prefixed rules for these anymore

* refactor menu theming to be cleaner and remove css colors

* add separator color back

* remove dynamic css, inline styles only

* remove bg color

* fixes #52929

* add high contrast default

* fix theming for selected item

* increase menu font size

* updating padding to keep menus compact

remove hover theming for menus as it no longer applies
remove unnecessary and conflicting high contrast theme border
use border over outline like hc

* submenu registration, ignore && mnemonic rendering for now

* clean up ActionItems for Menu Widget and submenu

* clean up the update actions logic in menubar

* fix keyboard navigation for submenus

* add terminal menu and update submenu labels

* fix missing separator issue

* updating some aria labels

* bring back action runner to hide menu before running

* address feedback from @bpasero

fixes #7123