[2.0.0-beta4] New strategy for white/grey/black lists

So, it is back to beta5 scope :)
I will review

Careful, I have rebased your branch. You may need to pull it form scratch.

There is a phpunit error:

1) Drupal\Tests\ui_patterns_devel\Kernel\ValidatorTest::testValidateError
Failed asserting that actual size 12 matches expected size 14.

The wording changes will be done in 📌 [2.0.0-beta3] Component validator wording Active but i will try to update some during my next review of thsi issue. Can I update the strings without having to also update the tests?

MR to redo on the new codebase.

Already merged :)

Automatically closed - issue fixed for 2 weeks with no activity.