Composer - replace threadgate modal with alf dialog (#4329)

* replace threadgate modal with alf dialog

* add accessibility to selectable

* add aria

* hide spinner once fetched

* add `hasOpenDialogs` value to context

* remove state

* Rm loading state

* Update the threadgate dialog button theming

* Factor out the threadgate editor and add editing to post views

* Mark messages for localization

* Use colors from mute dialog

* Remove unnecessary effect

* Reset state on dialog dismiss

* Clearer CTA

* Fix bugs

* Scope keyboard fix

* Rm getAreDialogsActive (no longer needed)

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>
Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/components/Dialog/index.web.tsx

@@ -88,7 +88,10 @@ export function Outer({
     if (!isOpen) return
 
     function handler(e: KeyboardEvent) {
-      if (e.key === 'Escape') close()
+      if (e.key === 'Escape') {
+        e.stopPropagation()
+        close()
+      }
     }
 
     document.addEventListener('keydown', handler)