ui_migration fix(bugfix): eventBus undefined found caused by not importing eventBus at autofocus comp, removing eventBus usage on child/parent this. events for task polling func

webapp/src/components/tabContentComponents/controlComponents/autofocusControl.vue

@@ -20,6 +20,7 @@
 import ActionButton from "../../labThingsComponents/actionButton.vue";
 // vue3 migration
 import { markRaw } from "vue";
+import { eventBus } from "../../../eventBus.js";
 
 export default {
   name: "AutofocusControl",