Support _contains operation for CSV type

[DanielBiegler]

Scope

What's changed:

This makes the client side applying of conditions align with the behavior of the API when dealing with an array (i.e. csv type)

Screencast.from.2024-03-29.14-37-28.webm

• Added some tests to confirm this behavior
• Removed relevant tests from generate-joi.test.ts because its actually just testing implementation instead of behavior. Lets improve the tests inside of validate-payload.test.ts so we nail down the actual behaviour without relying on hardcoding the schemas. Please note though that in the long run we want to overhaul the behavior differences between all occurences anyway, see Implement case insensitive (and other) filters consistently #20832 and a couple other issues 🙏

Potential Risks / Drawbacks

• Accidently validating something incorrectly that I didnt check for
• Fixed a bug where applying insensitive contains condition is not actually insensitive! That did the same thing as plain contains.

Review Notes / Questions

• Before checking out the branch you can see the difference between api and app when filtering via the search input. There it works and correctly looks for the substring inside the array - but if you now the same thing when applying a condition it gets ignored
• After checking out this branch that should behave the same!

---

Fixes #11309

[changeset-bot]

🦋 Changeset detected

Latest commit: e2a61cd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 18 packages

Name	Type
@directus/utils	Patch
@directus/api	Patch
@directus/composables	Patch
@directus/env	Patch
@directus/extensions-registry	Patch
@directus/extensions-sdk	Patch
@directus/extensions	Patch
@directus/memory	Patch
@directus/pressure	Patch
@directus/storage-driver-azure	Patch
@directus/storage-driver-cloudinary	Patch
@directus/storage-driver-gcs	Patch
@directus/storage-driver-s3	Patch
@directus/storage-driver-supabase	Patch
@directus/themes	Patch
@directus/validation	Patch
directus	Patch
create-directus-extension	Patch

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[paescuj]

lgtm.mp4