Add polyfill for IntersectionObserver

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/App.vue

@@ -101,7 +101,7 @@ $mdi-font-path: "~@mdi/font/fonts";
     background: #ebebeb;
 
     main {
-      margin: 1rem auto;
+      margin: 1rem auto 0;
     }
   }
 

js/src/views/Event/Edit.vue

@@ -277,7 +277,7 @@ import {
     EventVisibility,
     IEvent, ParticipantRole,
   } from '@/types/event.model';
-import { CURRENT_ACTOR_CLIENT, IDENTITIES, LOGGED_USER_DRAFTS, LOGGED_USER_PARTICIPATIONS } from '@/graphql/actor';
+import { CURRENT_ACTOR_CLIENT, LOGGED_USER_DRAFTS, LOGGED_USER_PARTICIPATIONS } from '@/graphql/actor';
 import { IPerson, Person } from '@/types/actor';
 import PictureUpload from '@/components/PictureUpload.vue';
 import EditorComponent from '@/components/Editor.vue';
@@ -289,6 +289,7 @@ import AddressAutoComplete from '@/components/Event/AddressAutoComplete.vue';
 import { buildFileFromIPicture, buildFileVariable, readFileAsync } from '@/utils/image';
 import IdentityPickerWrapper from '@/views/Account/IdentityPickerWrapper.vue';
 import { RouteName } from '@/router';
+import 'intersection-observer';
 
 @Component({
   components: { IdentityPickerWrapper, AddressAutoComplete, TagInput, DateTimePicker, PictureUpload, Editor: EditorComponent },

js/src/views/Event/Participants.vue

@@ -1,6 +1,3 @@
-import {ParticipantRole} from "@/types/event.model";
-import {ParticipantRole} from "@/types/event.model";
-import {ParticipantRole} from "@/types/event.model";
 <template>
     <main class="container">
         <b-tabs type="is-boxed" v-if="event" v-model="activeTab">