Update `react-select 4.3 → 5.x`

[haynesjm42]

They have full TS support now (https://react-select.com/typescript), and some nice improvements to customizing styling of the various components which would clean up some app code which currently has to provide full custom components or have very specific CSS overrides (https://react-select.com/styles#the-classnames-prop)

Also their site does not seem to have a nice archive of the docs for previous versions, which keeps tripping me up as I keep getting confused on what we can use in 4.x.

https://react-select.com/upgrade