feat: Replace new Vue() with custom event bus (no-changelog) (#5780)

* refactor: replace new Vue() with custom event bus (no-changelog)

* fix: export types from design system main

* fix: update component types

* fix: update form inputs event bus

packages/editor-ui/src/event-bus/html-editor.ts

@@ -0,0 +1,3 @@
+import { createEventBus } from '@/event-bus';
+
+export const htmlEditorEventBus = createEventBus();