MC-2208: Update events to new naming convention

- Updated sortableChildren event to camelcase

Author: Michael Yu

app/code/Magento/PageBuilder/view/adminhtml/web/js/binding/sortable-children.js

@@ -32,14 +32,14 @@ ko.bindingHandlers.sortableChildren = {
             .on("sortstart", (event: Event, ui: JQueryUI.SortableUIParams) => {
                 originalPosition = ui.item.index();
                 draggedContentType = instance.children()[originalPosition];
-                events.trigger("sortableChildren:sortstart", {
+                events.trigger("sortableChildren:sortStart", {
                     instance,
                     originalPosition,
                     ui,
                 });
             })
             .on("sortstop", (event: Event, ui: JQueryUI.SortableUIParams) => {
-                events.trigger("sortableChildren:sortstop", {
+                events.trigger("sortableChildren:sortStop", {
                     instance,
                     ui,
                 });
@@ -55,7 +55,7 @@ ko.bindingHandlers.sortableChildren = {
                         } else {
                             moveContentType(draggedContentType, index, targetParent);
                         }
-                        events.trigger("sortableChildren:sortupdate", {
+                        events.trigger("sortableChildren:sortUpdate", {
                             instance,
                             newPosition: index,
                             originalPosition,

app/code/Magento/PageBuilder/view/adminhtml/web/js/content-type/slider/preview.js

@@ -257,7 +257,7 @@ export default class Preview extends PreviewCollection {
         });
 
         // Set the active slide to the new position of the sorted slide
-        events.on("sortableChildren:sortupdate", (args: PreviewSortableSortUpdateEventParams) => {
+        events.on("sortableChildren:sortUpdate", (args: PreviewSortableSortUpdateEventParams) => {
             if (args.instance.id === this.parent.id) {
                 $(args.ui.item).remove(); // Remove the item as the container's children is controlled by knockout
                 this.setActiveSlide(args.newPosition);

app/code/Magento/PageBuilder/view/adminhtml/web/js/content-type/tabs/preview.js

@@ -86,7 +86,7 @@ export default class Preview extends PreviewCollection {
             }
         });
         // Refresh tab contents and set the focus to the new position of the sorted tab
-        events.on("sortableChildren:sortupdate", (args: PreviewSortableSortUpdateEventParams) => {
+        events.on("sortableChildren:sortUpdate", (args: PreviewSortableSortUpdateEventParams) => {
             if (args.instance.id === this.parent.id) {
                 this.refreshTabs(args.newPosition, true);
                 /**