Move MatomoApiManager to separate app

[JoeyStk]

Short description

Move MatomoApiManager to separate app, like we did before with deepl_api, gvz and summ_ai

Proposed changes

• Created matomo_api app and registered it
• Created apps.py file for MatomoApiManager

Side effects

• MatomoApi

Resolved issues

Fixes: #1737

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Pull Request Review Guidelines

[codeclimate[bot]]

Code Climate has analyzed commit fececac5 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 90.9% (50% is the threshold).

This pull request will bring the total coverage in the repository to 74.8% (0.0% change).

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[JoeyStk]

Please find my PR to move the MatomoApi to a separate app

• I had to disable one pylint test. I kept failing, although as far as I understood the message I already had solved it. It keep reporting, that I should put the relative imports to the bottom. But that was already the case.
• I'm still struggling with differentiating between utils and apps. Could you maybe give me a hint in the right direction when something is an app and when something is an util?

Thank you a lot in advance!

[JoeyStk]

Thank you again for your review. I hope I have it correctly now. As suggested I removed the ready-function and the MATOMO_ENABLED variable

[svenseeberg]

:rocket: