[5.4] Convert mod_menu to service provider

[joomlaweby]

Summary of Changes

Converts the administrator menu module to service provider.

Testing Instructions

1. Make sure you have administrator module mod_menu published and configured
2. You should see module output

Actual result BEFORE applying this Pull Request

Module works as expected

Expected result AFTER applying this Pull Request

Module works same way as before applying 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

[sergeytolkachyov]

I have tested this item ✅ successfully on 9d8ec9a

Menu module works.

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[exlemor]

I have tested this item ✅ successfully on 9d8ec9a

I have tested this successfully - even changed the menu to Alternative menu, turned off / on options everything worked as expected.

Thanks @joomlaweby!

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[richard67]

RTC

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[muhme]

Thank you @joomlaweby and all testers.

[brianteeman]

See #45886 this PR results in a fatal error when creating admin menu modules not sure how it could have been tested