Updated some models and changed to custom api

apps/dafa-web/src/app/services/api/participants.service.ts

@@ -22,7 +22,7 @@ function filterParticipants(participants: Participant[], searchFilter: string):
 })
 export class ParticipantsService {
   private _allParticipants$: Observable<Participant[]> = this.httpClient.get<Participant[]>(
-    `${environment.apiBase}/participants`
+    `${environment.api.meet}/participants`
   );
   private _activeParticipantsSortBy$ = new BehaviorSubject<SortBy | null>({ key: 'handleBefore', reverse: false });
   public activeParticipantsSortBy$: Observable<SortBy> = this._activeParticipantsSortBy$.asObservable();