After 7.0 > 7.1 or 7.2 theme upgrade, the menu to edit web contents will no longer be available

Issue

• After upgrading to DXP 7.1 or 7.2 a 7.0 DXP theme created with the Liferay Theme Generator according to e.g. this tutorial: Upgrading Your Theme from Liferay Portal 7.0 to 7.2, the Web Content Display widget showing a piece of web content will no longer have the menu options to Edit Web Content, Edit Template, etc ...
  
  

Environment

• Liferay DXP 7.1+

Resolution

• Make sure to address the 7.0 > 7.1 theme upgrade warning:
  
  

  ---

  File: portlet.ftl
  Warning: Several Applications in Liferay Portal 7.1 rely on a portlet_header_${portletId} extension point to show additional controls. When overwriting portlet.ftl, please, make sure you add a `<@liferay_util["dynamic-include"] key="portlet_header_${portlet_display_root_portlet_id}" />`.
  

  ---

  
  and edit the portlet.ftl file accordingly, for example:
  

   <div class="autofit-float autofit-row portlet-header">
     <div class="autofit-col autofit-col-expand">
       <h2 class="portlet-title-text">${portlet_title}</h2>
     </div>
                
     <div class="autofit-col autofit-col-end">
       <div class="autofit-section">
                      <@liferay_util["dynamic-include"] key="portlet_header_${portlet_display_root_portlet_id}" />
       </div>
     </div>
   </div>

  For a full reference, you may want to observe a fresh portlet.ftl file from 7.2 DXP vanilla theme created with the Liferay Theme Generator