Update documentation for v2.2

[gabegma]

Description:

• Update screenshot, release notes, documentation and version.

Checklist:

You should check all boxes before the PR is ready. If a box does not apply, check it to acknowledge
it.

• PRE-COMMIT. You ran pre-commit on all commits, or else, you
  ran pre-commit run --all-files at the end.
• FRONTEND TYPES. Regenerate the front-ent types if you played with types and routes.
  Run cd webapp && yarn types while the back-end is running.
• USER CHANGES. The changes are added to CHANGELOG.md and the documentation, if they impact
  our users.
• DEV CHANGES.
  • Update the documentation if this PR changes how to develop/launch on the app.
  • Update the README files and our wiki for any big design decisions, if relevant.
  • Add unit tests, docstrings, typing and comments for complex sections.

[gabegma]

Almost ready - only missing to integrate the smart tag families icon from @JosephMarinier

[Dref360]

I see that metrics changed between version, did we update the model?

[gabegma]

You see that from the screenshot @Dref360? It's not that the metrics changed, I just had a different set of filters enabled.

[JosephMarinier]

Ho yeah! Thank you for your everlasting efforts on the documentation. I only have tiny comments. 👍