[5.1] Use Dialog for extensions changelog

[Fedik]

Summary of Changes

Use Dialog for extension changelog

Testing Instructions

You need an extension with changelog.
Open Extensions => Manage, find the extension with changelog and click changelog btn.
Open Update overview and click on the extension changelog btn, if there any update :)

Also can use Test instruction from #41675

Actual result BEFORE applying this Pull Request

Works with BS Modal

Expected result AFTER applying this Pull Request

Works with Joomla Dialog

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

References:

• [5.0][RFC] Joomla Dialog (popup) script. Free, without CC and registration #40150

[Quy]

I have tested this item ✅ successfully on 46f3b9c

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[viocassel]

I have tested this item ✅ successfully on 2b378a1

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[alikon]

RTC

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[LadySolveig]

Thank you @Fedik and for testing @Quy @viocassel