DevTools should display a list of hotkeys

[stevemonaco]

Is your feature request related to a problem? Please describe.

I keep forgetting how to activate certain features, notably the Popup Freeze. This means I need to double-check the DevTools docs. There's no in-app discoverability for Popup Freeze, AFAIK.

Describe the solution you'd like

A new menu option (View -> Hotkeys) that pops up a dialog that lists all hotkeys and what they do.

Describe alternatives you've considered

A new tab to accompany "Logical Tree", "Visual Tree", and "Events" called "Hotkeys". This eliminates the need for a dialog (especially a new window dialog), but probably gives Hotkeys too much visual importance.

Additional context

No response

[maxkatz6]

It's mixed right now. Some hot keys are displayed in the status bar. Some are visible in the menu. And some (like popup freeze) aren't nowhere to find.

If we add a new tab, I expect some kind of Welcome page just like in Chrome
Nevermind, Chrome has a dedicated menu option that opens a hotkey page:

[workgroupengineering]

we could add an item to system menu.