refactor cellxgene census component

[rcannood]

Changelog

• query/cellxgene_census: Refactored the interface, documentation and internal workings of this component (PR #621).

  • --input_database became --input_uri
  • --cellxgene_release became --census_version
  • --cell_query became --obs_value_filter
  • --cells_filter_columns became --cell_filter_grouping
  • --min_cells_filter_columns became --cell_filter_minimum_count
  • --modality became --output_modality
  • Removed --dataset_id since it was no longer being used.
  • Added --add_dataset_meta to add metadata to the output MuData object.
  • Documentation of the component and its arguments was improved.
  • Python version was bumped to 3.10, and obonet was dropped from the list of dependencies.
  • Refactoring of the internal code to improve readability and maintainability.

Issue ticket number and link

Closes #xxxx (Replace xxxx with the GitHub issue number)

Checklist before requesting a review

• [x] I have performed a self-review of my code

• [x] Conforms to the Contributor's guide

• Check the correct box. Does this PR contain:

  • [x] Breaking changes
  • [ ] New functionality
  • [ ] Major changes
  • [ ] Minor changes
  • [ ] Documentation
  • [ ] Bug fixes

• [x] Proposed changes are described in the CHANGELOG.md

• [x] CI tests succeed!

[rcannood]

Hi @MatthiasBeyens ! I cleaned up the cellxgene component a bit. Could you take a look at the proposed changes? :bow: Thanks!

[rcannood]

They don't :scream:

[rcannood]

Now they do ^^