Fixing modal close

src/main/webapp/app/exercise/exercise-details/exercise-details.component.html

@@ -78,7 +78,7 @@
                                 </div> <!-- modal bookmark end-->
 
                                 <button *ngIf="exercise.type == exerciseType.COLLECTION" type="button" class="btn btn-outline-secondary"
-                                     (click)="searchChildren(exercise.originalResult.exerciseId)" 
+                                     (click)="searchChildren(exercise.originalResult.exerciseId)" data-dismiss="modal"
                                     style="display: block; margin-bottom: 5px;"
                                     jhiTranslate="exercise.details.allExercises"
                                     >