MOBILE-3814 data: Fix not fixed navigation bar

src/addons/mod/data/pages/entry/entry.html

@@ -60,7 +60,7 @@
             [instanceId]="database.coursemodule" component="mod_data" [itemId]="entry.id" area="database_entry" [courseId]="courseId"
             (onLoading)="setLoadingComments($event)" [showItem]="true">
         </core-comments>
-
+    </core-loading>
     <div collapsible-footer *ngIf="entryLoaded && hasPrevious || hasNext" slot="fixed" appearOnBottom>
         <ion-row class="ion-justify-content-between ion-align-items-center ion-no-padding ion-wrap">
             <ion-col class="ion-text-start ion-no-padding core-navigation-arrow" size="auto">
@@ -79,5 +79,4 @@
             </ion-col>
         </ion-row>
     </div>
-    </core-loading>
 </ion-content>