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/ConversationItem.vue

@@ -56,14 +56,14 @@ export default {
     :selected="isConversationSelected(source.id)"
     :show-assignee="showAssignee"
     enable-context-menu
-    @selectConversation="selectConversation"
-    @deSelectConversation="deSelectConversation"
-    @assignAgent="assignAgent"
-    @assignTeam="assignTeam"
-    @assignLabel="assignLabels"
-    @updateConversationStatus="updateConversationStatus"
-    @contextMenuToggle="toggleContextMenu"
-    @markAsUnread="markAsUnread"
-    @assignPriority="assignPriority"
+    @select-conversation="selectConversation"
+    @de-select-conversation="deSelectConversation"
+    @assign-agent="assignAgent"
+    @assign-team="assignTeam"
+    @assign-label="assignLabels"
+    @update-conversation-status="updateConversationStatus"
+    @context-menu-toggle="toggleContextMenu"
+    @mark-as-unread="markAsUnread"
+    @assign-priority="assignPriority"
   />
 </template>