Add iframe allow key to window-management (#2458)

Author: jamesnw

features/window-management.yml

@@ -22,4 +22,5 @@ compat_features:
   - api.ScreenDetails.screenschange_event
   - api.Window.getScreenDetails
   - api.Window.open.relative-multi-screen
+  - html.elements.iframe.allow.window-management
   - http.headers.Permissions-Policy.window-management

features/window-management.yml.dist

@@ -24,6 +24,7 @@ compat_features:
   - api.Screen.change_event
   - api.Screen.isExtended
   - api.Window.getScreenDetails
+  - html.elements.iframe.allow.window-management
   - http.headers.Permissions-Policy.window-management
 
   # baseline: false