MC-5810: Improve naming of the critical variables/parameters in the code and configuration

- Contextualized constructor parent variable

Author: Hwashiang Yu

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

@@ -18,7 +18,7 @@ import loadModule from "./utils/loader";
  * Create new content type
  *
  * @param {ContentTypeConfigInterface} config
- * @param {ContentTypeInterface} parent
+ * @param {ContentTypeInterface} containerContentType
  * @param {number} stageId
  * @param {object} data
  * @param {number} childrenLength
@@ -27,7 +27,7 @@ import loadModule from "./utils/loader";
  */
 export default function createContentType(
     config: ContentTypeConfigInterface,
-    parent: ContentTypeCollectionInterface,
+    containerContentType: ContentTypeCollectionInterface,
     stageId: string,
     data: object = {},
     childrenLength: number = 0,
@@ -39,7 +39,7 @@ export default function createContentType(
         loadModule([config.component], (contentTypeComponent: typeof ContentType) => {
             try {
                 const contentType = new contentTypeComponent(
-                    parent,
+                    containerContentType,
                     config,
                     stageId,
                 );

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

@@ -37,11 +37,11 @@ export default class Preview extends BasePreview {
      * @inheritdoc
      */
     constructor(
-        parent: ContentTypeInterface,
+        master: ContentTypeInterface,
         config: ContentTypeConfigInterface,
         observableUpdater: ObservableUpdater,
     ) {
-        super(parent, config, observableUpdater);
+        super(master, config, observableUpdater);
         this.placeholderText = ko.observable(this.messages.NOT_SELECTED);
     }
 

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

@@ -24,16 +24,16 @@ export default class Preview extends BasePreview {
     private element: Element;
 
     /**
-     * @param {ContentTypeInterface} parent
+     * @param {ContentTypeInterface} master
      * @param {ContentTypeConfigInterface} config
      * @param {ObservableUpdater} observableUpdater
      */
     constructor(
-        parent: ContentTypeInterface,
+        master: ContentTypeInterface,
         config: ContentTypeConfigInterface,
         observableUpdater: ObservableUpdater,
     ) {
-        super(parent, config, observableUpdater);
+        super(master, config, observableUpdater);
         this.toolbar = new Toolbar(
             this,
             this.getToolbarOptions(),

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

@@ -31,11 +31,11 @@ export default class Preview extends BasePreview {
      * @inheritdoc
      */
     constructor(
-        parent: ContentTypeInterface,
+        master: ContentTypeInterface,
         config: ContentTypeConfigInterface,
         observableUpdater: ObservableUpdater,
     ) {
-        super(parent, config, observableUpdater);
+        super(master, config, observableUpdater);
         this.placeholderText = ko.observable(this.messages.EMPTY);
     }