Fully switches to ruff preview and cleans up config

[Daverball]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 90.47619% with 4 lines in your changes missing coverage. Please review.

Project coverage is 89.22%. Comparing base (1154c6c) to head (5811884).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
src/onegov/activity/collections/invoice.py	0.00%	1 Missing ⚠️
src/onegov/agency/excel_export.py	80.00%	1 Missing ⚠️
src/onegov/form/utils.py	66.66%	1 Missing ⚠️
src/onegov/fsi/ims_import.py	0.00%	1 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
src/onegov/activity/collections/booking.py	97.39% <100.00%> (+0.81%)	⬆️
src/onegov/agency/layout.py	94.48% <100.00%> (+1.46%)	⬆️
src/onegov/core/converters.py	86.17% <100.00%> (ø)
src/onegov/core/i18n/__init__.py	97.85% <100.00%> (ø)
src/onegov/directory/archive.py	91.76% <ø> (+0.37%)	⬆️
src/onegov/directory/migration.py	92.50% <100.00%> (-0.04%)	⬇️
...ion_day/formats/imports/election/wabstic_majorz.py	91.44% <100.00%> (ø)
...on_day/formats/imports/election/wabstic_proporz.py	93.06% <100.00%> (ø)
...negov/election_day/formats/imports/vote/wabstic.py	94.40% <100.00%> (ø)
src/onegov/election_day/path.py	96.80% <ø> (ø)
... and 23 more

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