Add toggle to disable groups

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

js/src/views/Event/Edit.vue

@@ -51,7 +51,7 @@
               />
             </b-field>
           </div>
-          <div class="column">
+          <div class="column" v-if="config && config.features.groups">
             <b-field :label="$t('Group')" v-if="event.organizerActor">
               <group-picker-wrapper v-model="event.attributedTo" :identity="event.organizerActor" />
             </b-field>

js/src/views/Moderation/ReportList.vue

@@ -12,7 +12,7 @@
       }}</b-radio-button>
     </b-field>
     <ul v-if="reports.length > 0">
-      <li v-for="report in reports">
+      <li v-for="report in reports" :key="report.id">
         <router-link :to="{ name: RouteName.REPORT, params: { reportId: report.id } }">
           <report-card :report="report" />
         </router-link>