FEAT #12091 TIME 0:15 fix validate button in indexation

src/frontend/app/indexation/indexation.component.html

@@ -89,7 +89,7 @@
                         </ng-container>
                     </mat-menu>
                     <button mat-button *ngIf="!appService.getViewMode()"
-                        [disabled]="actionService.loading || selectedAction.id === 0 || (appDocumentViewer.isEditingTemplate() && appDocumentViewer.editor.async)"
+                        [disabled]="actionService.loading || selectedAction.id === 0 || (appDocumentViewer !== undefined && !appDocumentViewer.isEditorLoaded())"
                         class="button-form-primary-filled"
                         style="width: 150px;align-items: center;justify-content: center;text-align: center;display: flex;"
                         (click)="onSubmit()">{{lang.validate}}</button>