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/components/VariableSelectorItem.vue

@@ -59,7 +59,6 @@
 </template>
 
 <script lang="ts">
-import Vue from 'vue';
 import { IVariableSelectorOption, IVariableItemSelected } from '@/Interface';
 import { externalHooks } from '@/mixins/externalHooks';
 import mixins from 'vue-typed-mixins';