[Feature] Email collect message hooks (#331)

- Add email collect hook on creating conversation
- Merge contact if it already exist

app/javascript/dashboard/components/buttons/FormSubmitButton.vue

@@ -12,7 +12,7 @@
 </template>
 
 <script>
-import Spinner from '../Spinner';
+import Spinner from 'shared/components/Spinner';
 
 export default {
   components: {

app/javascript/dashboard/components/buttons/ResolveButton.vue

@@ -15,7 +15,7 @@
 /* eslint no-console: 0 */
 /* global bus */
 import { mapGetters } from 'vuex';
-import Spinner from '../Spinner';
+import Spinner from 'shared/components/Spinner';
 
 export default {
   props: ['conversationId'],