Skip phx-click-away if clicked target is hidden

[SteffenDE]

Closes #4070.

[maltoe]

Thank you!

Are you sure this has no further implications elsewhere? E.g., wouldn't it affect people who dispatch a JS.click with an explicit target on an element outside their click-away that is hidden for whatever reason?

[SteffenDE]

It would, but I think it's fairly unlikely that people rely on it and even if they do, changing such code to click on something like document.body should work. Either that or we can't really fix your problem. We could adjust phoenix_html to set a special attribute we can detect, but I think this is fine for now. We can reevaluate if people run into problems!