Unpublish per locale

[PP-Tom]

Hey Payload Team,

Congratulations on V3 launch! One thing I think would improve the editing experience around locales is;

1. The ability to unpublish per locale, at the moment you can publish but not unpublish which means if you accidentally publish a locale there is no way to undo it.
2. I think the Publish button shouldn't publish all locales by default, this is too much room for accidentally publishing unfinished locales. The publish button should publish the current locale you are editing and the dropdown should be "Publish All Locales".