[Lens] Make it easier to exit the configuration flyout

[AlonaNadler]

Describe the feature: to close the configuration flyout at the momonet users must click on the arrow <--
This is a frequent operation, there should be more easy ways than to move the mouse to that direction, for example close the flyout when clicking outside the flyout area

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[cchaos]

This is a technical implementation, not a design decision. There are several ways to handle it.

1. Add the EuiOutsideClickDetector as a wrapper so that anytime the user clicks outside of the flyout, it closes. This may have unintended reactions from users, but worth a try.
2. I mentioned adding a timer that starts when the user stops interacting within the flyout, and then auto-close once that time reaches a certain count.

[wylieconlon]

Thanks for taking a look @cchaos, I guess I made a bad assumption here. Those suggestions are helpful and will give us something to try.

[AlonaNadler]

Working extensively with Lens master in the past 2 days. This really hurt the experience.
I constantly had to move my mouse across the screen to close the configuration flyout in order to change or add more fields.
Can we still do something about it in 7.10?
ideally, any click outside the configuration flyout will close it

[cchaos]

A PR is open and close to merging #78733