Adding translators to About page

frontend/src/app/components/about/about.component.html

@@ -163,6 +163,19 @@
       </a>
     </div>
   </div>
+
+  <ng-container *ngIf="translators$ | async | keyvalue as translators else loadingSponsors">
+    <div class="maintainers">
+      <h3 i18n="about.translators">Translators</h3>
+      <div class="wrapper">
+        <ng-template ngFor let-translator [ngForOf]="translators">
+          <a [href]="'https://twitter.com/' + translator.value" target="_blank" [title]="translator.key">
+            <span>{{ translator.value }}</span>
+          </a>,
+        </ng-template>
+      </div>
+    </div>
+  </ng-container>
   
   <ng-container *ngIf="allContributors$ | async as contributors else loadingSponsors">
     <div class="contributors">