Add button to edit publications on publication view page.

frontend/src/app/pages/publication-edition/publication-edition.component.html

@@ -40,7 +40,6 @@
 
                 </mat-tab>
             </mat-tab-group>
-            
             <footer>
                 <app-submit-button label="Save" [requestPending]="(isSaving$ | async) == true"></app-submit-button>
                 <button type="button" class="secondary" (click)="goPreviousLocation()">