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/design-system/src/utils/index.ts

@@ -1,3 +1,4 @@
+export * from './event-bus';
 export * from './markdown';
 export * from './uid';
 export * from './valueByPath';