MC-5232: Prefix field names with section name to avoid field name collision

- Update usages of accessing data on the data object

Author: davemacaulay

app/code/Magento/PageBuilder/view/adminhtml/web/js/content-type/block/mass-converter/widget-directive.js

@@ -5,6 +5,7 @@
 
 import {ConverterConfigInterface, ConverterDataInterface} from "../../../mass-converter/converter-interface";
 import BaseWidgetDirective from "../../../mass-converter/widget-directive-abstract";
+import {set} from "../../../utils/object";
 
 /**
  * Enables the settings of the content type to be stored as a widget directive.
@@ -46,7 +47,7 @@ export default class WidgetDirective extends BaseWidgetDirective {
             return data;
         }
 
-        data[config.html_variable] = this.buildDirective(attributes);
+        set(data, config.html_variable, this.buildDirective(attributes));
         return data;
     }
 }