[5.4] Move associations alert

[brianteeman]

Pull Request for Issue #33841 .

Summary of Changes

Move the message inside the fieldset so we dont have the ugly empty fieldset

Testing Instructions

This is a js change so either use a prebuilt package or apply the pr and run npm build:js

Install an additional language and enable the language filter plugin
Go to any article/menu etc and make sure the language is set to ALL
Go to the associations tab and check the results

Change the language of the item to anything other than ALL and verify that the associations fields are now displayed and the message is not

Actual result BEFORE applying this Pull Request

Expected result AFTER applying this Pull Request

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

[exlemor]

I have tested this item ✅ successfully on 362f8af

I have tested this successfully! Nice and easy one! Thanks @brianteeman!

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[richard67]

I have tested this item ✅ successfully on 362f8af

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[richard67]

RTC

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[muhme]

✅ Final check before merge with JBT graft, installed German as extension, reproduced the problem and checked the fix

[muhme]

Thank you @brianteeman for your contribution. Thank you @exlemor and @richard67 for testing.