[player] Rename method 'onChildrenAdded'

projects/player/src/app/components/elements/compound-group-element/compound-group-element.component.html

@@ -5,14 +5,14 @@
       #elementComponent
       [parentForm]="form"
       [elementModel]="elementModel | cast: ClozeElement"
-      (childrenAdded)="onChildrenAdded($event)">
+      (childrenAdded)="registerCompoundChildren($event)">
   </aspect-cloze>
   <aspect-likert
       *ngIf="elementModel.type === 'likert'"
       #elementComponent
       [parentForm]="form"
       [elementModel]="elementModel | cast: LikertElement"
-      (childrenAdded)="onChildrenAdded($event)">
+      (childrenAdded)="registerCompoundChildren($event)">
   </aspect-likert>
 </form>
 

projects/player/src/app/components/elements/compound-group-element/compound-group-element.component.ts

@@ -48,7 +48,7 @@ export class CompoundGroupElementComponent extends ElementFormGroupDirective imp
     this.createForm((this.elementModel as CompoundElement).getChildElements() as InputElement[]);
   }
 
-  onChildrenAdded(children: ElementComponent[]): void {
+  registerCompoundChildren(children: ElementComponent[]): void {
     children.forEach(child => {
       const childModel = child.elementModel as InputElement;
       this.registerAtUnitStateService(