Fix and update easysearch

models/users.js

@@ -2,6 +2,7 @@
 import { SyncedCron } from 'meteor/percolate:synced-cron';
 import { TAPi18n } from '/imports/i18n';
 import ImpersonatedUsers from './impersonatedUsers';
+import { Index, MongoDBEngine } from 'meteor/easy:search'
 
 // Sandstorm context is detected using the METEOR_SETTINGS environment variable
 // in the package definition.
@@ -537,9 +538,10 @@ Users.allow({
 // Search a user in the complete server database by its name, username or emails adress. This
 // is used for instance to add a new user to a board.
 const searchInFields = ['username', 'profile.fullname', 'emails.address'];
-Users.initEasySearch(searchInFields, {
-  use: 'mongo-db',
-  returnFields: [...searchInFields, 'profile.avatarUrl'],
+Users.search_index = new Index({
+  collection: Users,
+  fields: searchInFields,
+  engine: new MongoDBEngine(),
 });
 
 Users.safeFields = {