style: apply fixes for eslint issues [cw-3590] (#10210)

These fixes are all auto generated and can be merged directly

Fixes the following issues

1. Event used on components should be hypenated
2. Attribute orders in components
3. Use `unmounted` instead of `destroyed`
4. Add explicit `emits` declarations for components, autofixed [using
this
script](https://gist.github.com/scmmishra/6f549109b96400006bb69bbde392eddf)


We ignore the top level v-if for now, we will fix it later

app/javascript/dashboard/components/widgets/conversation/conversationBulkActions/LabelActions.vue

@@ -2,6 +2,7 @@
 import { mapGetters } from 'vuex';
 
 export default {
+  emits: ['update', 'close', 'assign'],
   data() {
     return {
       query: '',