Support `user-select` text from the graph elements

[archmoj]

https://developer.mozilla.org/en-US/docs/Web/CSS/user-select

cc: @ndrezn

[archmoj]

Noting that we fixed #5021 in #5165.
Here we want to have options e.g. none, text and all.

[archmoj]

Also see #5320

[apberesford]

This has been requested by an Enterprise customer, ZD 21202