[5.1] Fix TinyMCE media button, frontend edit

[Fedik]

Pull Request for Issue #43344 .

Summary of Changes

Fix the Media button for frontend, in submenu.

Testing Instructions

Please follow #43344

Actual result BEFORE applying this Pull Request

Broken

Expected result AFTER applying this Pull Request

Works

Link to documentations

Please select:

• Documentation link for docs.joomla.org:
• No documentation changes for docs.joomla.org needed
• Pull Request link for manual.joomla.org:
• No documentation changes for manual.joomla.org needed

[brianteeman]

I have tested this item ✅ successfully on 30936e0

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[carlitorweb]

I have tested this item ✅ successfully on 30936e0

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43376.}

[Quy]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43376.}

[LadySolveig]

Thank you @Fedik and for testing @brianteeman @carlitorweb

[Scrabble96]

I'm using 5.1.0 and have this problem but it is solved (on a test site) with Joomla_5.1.1-rc1-Release_Candidate-Update_Package - EXCEPT that when a front-end user first clicks on the CMS media link the pop-up window contains the message "You have been logged out". This is not true, as the user can continue editing and saving articles. I am using a custom template; not Cassiopeia. The html is:

   <div class="alert-wrapper">
     <div class="alert-message">You have been logged out.</div>
   </div>

[brianteeman]

Please do not comment on closed issues or pull requests. Very few people will see it.