Add AVIF Rewrite rules

[Miraeld]

Description

This PR adds the rewrite rules management for the AVIF picture format

Fixes #764

Type of change

• New feature (non-breaking change which adds functionality).

Is the solution different from the one proposed during the grooming?

No

Checklists

Generic development checklist

• My code follows the style guidelines of this project, with adapted comments and without new warnings.
• I have added unit and integration tests that prove my fix is effective or that my feature works.
• The CI passes locally with my changes (including unit tests, integration tests, linter).
• Any dependent changes have been merged and published in downstream modules.
• If applicable, I have made corresponding changes to the documentation. Provide a link to the documentation.

Test summary

• I triggered all changed lines of code at least once without new errors/warnings/notices.
• I validated all Acceptance Criteria of the related issues. (If applicable, provide proof).
• I validated all test plan the QA Review asked me to.

[remyperona]

You can do the same changes in the Nginx file

[Khadreal]

Looks good to me :)

[remyperona]

This PR is missing the instantiation and loading of the init method of the class, but I want to move to the container + event manager instead, so we could do it once they are in