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Description
Refactor how we set data focus, so that when you move into a focusable container it sets the data-focus of that focusable container to also point to the same item your focus eventually landed on.
Rewrote the README a bit for clarity too
Motivation and Context
When moving between multiple nested containers, you previously could end up with lots of different data-focuses at each level that you move through. This'd sometimes mean if you moved your focus out of a focusable container then back in via the same thing, you'd lose the focus history because it hadn't been stored on the parent.
How Has This Been Tested?
New unit tests, and has been running in test for a while now.
Checklist: