OSC 9 Support - avoid canonicalized path

[bminer]

When I duplicate a tab in Windows Terminal with osc9_9 enabled in config.nu, if my current working directory is in a mapped network drive, the duplicated tab shows the current working directory as a canonicalized UNC path. This is a known Rust issue: rust-lang/rust#42869

I suggest using std::path::absolute (although it does not resolve symlinks or access the filesystem) instead of std::fs::canonicalize before sending the path to the terminal using OSC 9.

Another alternative is to replace the UNC prefix with the mapped network drive letter whenever possible.

Yet another alternative is to simply send up $env.PWD.

Thoughts on this?

[bminer]

In fact, perhaps this applies to other areas of terminal integration, not just OSC 9.

[bminer]

Sorry, posted on the wrong Github repo. Moving...