display pagination if there is more than 1 page

client/src/app/instance/search/components/result/datatable.component.html

@@ -65,7 +65,7 @@
         </select>
         entries
     </div>
-    <div class="col-auto">
+    <div class="col-auto" *ngIf="dataLength > nbItems">
         <pagination
             [(ngModel)]="page"
             [totalItems]="dataLength"