[recycle bin] improve rest endpoints and test with real tool

[cekk]

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I refactored endpoints to be aligned with last changes in CMFPlone related pull-request, and add tests with real tool (using mxdev checkouts)

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📚 Documentation preview 📚: https://plonerestapi--2005.org.readthedocs.build/

[read-the-docs-community]

Documentation build overview

📚 plone.restapi | 🛠️ Build #31927336 | 📁 Comparing 6aec3ed against latest (abebc6b)

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Show files changed (5 files in total): 📝 4 modified | ➕ 1 added | ➖ 0 deleted

File	Status
index.html	📝 modified
endpoints/index.html	📝 modified
endpoints/querystringsearch.html	📝 modified
endpoints/recycle-bin.html	➕ added
endpoints/registry.html	📝 modified