Release actions-ux-201012

[paolodamico]

Changes

Terminates the experiment introduced by #1841. Based on results, we're releasing the new code following the positive outcome. This PR removes all the legacy code and terminates the feature flag usage.

Checklist

• All querysets/queries filter by Organization, by Team, and by User
• Django backend tests
• Jest frontend tests
• Cypress end-to-end tests

[timgl]

One bit of feedback I got from a users was that this was very confusing:

What happened was they had set the autocapture on the left and accidentally clicked the plus on the right. They hadn't realised the right group was matching "OR" and thus matching each pageview. I think it should be more obvious these boxes are 'match groups'.

[paolodamico]

Thanks for the review @timgl, addressed it with:

• Showing a title on each match group
• When a user adds a match group but doesn't even make a type of event ($autocapture, $pageview, event) selection, the group will not be saved.

In addition, the type switcher is now centered in the match group when a selection has not been made. This is to address the case when you have scrolled (because the match group to the side has a large height) and you would no longer see the type of event selector.

Ready for a full review!