The website editor’s media dialog code was reorganized to make image, document, search, and Unsplash handling clearer and easier to maintain. This is mostly an internal cleanup with little expected day-to-day impact, but it prepares the editor for future improvements and reduces maintenance risk.

* web_unsplash, website, website_blog

Merge commit for PR: #33509

No big functional change, clean up media dialog code in preparation
of task-1930726.

See individual commits for more information.

This update replaces an older internal setting used to control where action menu options appear with the newer supported approach. Users should see the same options in the relevant screens, while the change keeps these apps aligned with the platform’s current standards.

cf odoo/odoo#24738