refs https://github.com/TryGhost/Ghost/issues/14101
- migrated staff user controller to native class syntax
- removed use of `{{action}}` helper
- moved from custom components to native `<input>` and `<textarea>` for form fields
- added `{{select-on-click}}` modifier to cover the `<GhTextingInput @selectOnClick>` option behaviour for any input element
- added `submitForm()` test helper that finds closest `form` element and trigger's a `submit` event on it simulating <kbd>Enter</kbd> being pressed whilst a field has focus
no issue
- swapped from route actions triggered by shortcuts mixin to explicit `{{on-key}}` actions
- when saved via keyboard, blur any focused element to trigger it's on-blur action and schedule the save to run after those actions
no issue
- ran the `ember-native-class-codemod` codemod to convert just the route classes to native class syntax and performed some minor manual cleanup
- modern Ember uses native classes rather than EmberObject-based objects, this brings us closer to normalizing our code style across the codebase
- skipped the Application route as that requires deeper testing with a replacement for the `ShortcutsRoute` mixin
no issue
Mixins are deprecated in Ember so we want to remove their usage. The `CurrentUserSettings` mixin was used in Route files to provide `transitionAuthor()` (that also transitions contributors) and `transitionEditor()` methods so the the consuming route could use them to prevent access to authors/editors. In practice the only reason this was used was to prevent access to admin-only routes.
- added an `AdminRoute` class that inherits from our `AuthenticatedRoute` class
- when any route inherits from this class it will only allow access to admins and owners, any other user will be redirected to the home screen (dashboard or site depending on permissions)
- updated all of our admin-only routes to use the new `AdminRoute`
- allowed for removal of `CurrentUserSettings` mixin usage
- allowed for `beforeModel()` hooks to be removed from consuming routes in many cases
- some admin-only routes were extending/inheriting directly from Ember's `Route` based on the assumption that the router hierarchy would have a parent route perform the redirect. Those have also been switched to `AdminRoute` for consistency and to prevent accidentally making them available if the router hierarchy changes
- `/#/settings` does not use the `AdminRoute` so that it can redirect to the current user's setting page for non-admin users
- removed `CurrentUserSettings` mixin file
- cleaned up unnecessary computed property and function used for redirect-when-disabled in the Zapier route
