[4.4] Use HelperFactory to get Helper for mod_quickicon

[joomdonation]

Pull Request for Issue # .

Summary of Changes

This PR makes small changes to mod_quickicon code to use HelperFactory to get it's Helper class. It has two benefits:

1. Consistent code with how we are getting Helper for other modules. For example https://github.com/joomla/joomla-cms/blob/4.2-dev/modules/mod_articles_latest/src/Dispatcher/Dispatcher.php#L41
2. Save the system from having to go to bootModule routine again before it can get module helper class.

Testing Instructions

1. Use Joomla 4.3 nightly build
2. Apply patch
3. Access to administrator area of your site, look at Home Dashboard, Notifications section. Make sure the icons there are still being displayed (see the attached screenshot)

Actual result BEFORE applying this Pull Request

Works

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

[carlitorweb]

I have tested this item ✅ successfully on 632ec44

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/40018.}

[chmst]

I have tested this item ✅ successfully on 632ec44

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/40018.}

[chmst]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/40018.}

[laoneo]

Thanks!