[BUG] The text of editable field node should be bold when it is selected

• Type: Technical Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Pages > Page Editor
• Labels: None
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/86970

Step to reproduce:

1. Add a page based on Blank
2. Add a Heading fragment
3. Click the Page Structure button from page editor sidebar
4. Right click on element-text then Inspector
5. Click the <div class="page-editor_page-structuretree-node_name">
6. Select on element-text node

Expected Results:
The text element-text should become bold and the font weight should be 600.

Actual Results:
The *element-text is regular.

Reproduced on:
Tomcat 9.0.33 + MySQL 5.7. Portal master GIT ID: fd6ee45eaf174d9331842904bb2db6bc8e87f715.