[5.1] Dialog: aria-label for Close button is not translated

[brianteeman]

Pull Request for Issue #42301 .

Summary of Changes

Changes hadr coded english to a translatable string wioth fallback

Testing Instructions

npm run build:js or use a prebuilt package

Enable Debug Language.
Edit an article.
Under Publishing tab > Created by, click user icon to display the modal dialog.
Using Web Developer Tools, select the Close button to inspect it.

Actual result BEFORE applying this Pull Request

aria-label="**Close**"

Expected result AFTER applying this Pull Request

<button type="button" aria-label="Close" class="button-close btn-close" data-button-close=""></button>

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

[Quy]

I have tested this item ✅ successfully on 28ab937

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[viocassel]

I have tested this item ✅ successfully on 6bef5cd

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43058.}

[Quy]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43058.}

[bembelimen]

Thx