[5.1] Convert mod_title to service provider

[joomlaweby]

Summary of Changes

Converts the administrator title module to service provider.

Testing Instructions

1. Make sure you have site module mod_title published
2. You should see module output in administrator area

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

[fgsw]

I have tested this item ✅ successfully on a115838

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[viocassel]

I have tested this item ✅ successfully on a115838

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[alikon]

RTC

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[LadySolveig]

Thank you @joomlaweby and also for testing @fgsw @viocassel