No focus-guard exists when select menu is open

[midanosi]

The native html select element blocks all pointer-events for an entire webpage when the dropdown is open. At the moment, 'react-select' does not reflect this standard focus guard behaviour.

Select elements in other libraries have replicated this behaviour, with varying implementation methods.

Quick explanation vid is attached. Thank you! https://github.com/JedWatson/react-select/assets/33626784/9d06065d-0219-411e-a4a6-12bb5ac48d70