Remove aria-hidden=true with noIsolation behavior

[omerdemirkan]

Current behavior adds aria-hidden attribute throughout the DOM with noIsolation === true by calling hideOthers(refs, document.body, undefined).

This makes introducing the library into a codebase with existing UI testing extremely challenging, as many testing frameworks ignore subtrees with aria-hidden="true", meaning as soon as react-focus-on is used, many UI tests may go red. I made this in hopes of removing that barrier to entry.

[theKashey]

From one point of view hiding everything except currently "usable" area should fix those tests, so this moment is not really makes sense.
But there are two other points:

• I know how hard it to be "enforced" to follow some best practices as the old code might be just not "ready"
• This code was supposed to be like this. I should double check (git) history to understand why it ended this way, but noIsolation means NO ISOLATION. No other reading is possible.

[theKashey]

Change has been approved. Please give me a moment to verify my decisions of the past.

[theKashey]

• the intention of noIsolation ? undefined : focusHiddenMarker is to set focusHiddenMarker for "other nodes"
• focusHiddenMarker controls pointer-events: none
• 😅 obviously removing mouse interaction should be syncronized with removing aria control
• in other words - proposed change in the only valid way to do that

[omerdemirkan]

Thanks for the context!

Would love to get my hands on an updated version; is there a particular schedule the package follows for releases?

[theKashey]

Trying to handle 4 more problems (starting from #58)