changed deprecated flag for updated version

[Jacobacon215]

Issue

Current autogenerated config for nushell produces this warning on load:

Warning: nu::parser::deprecated

  ⚠ Flag deprecated.
    ╭─[/home/jay/.config/nushell/vfox.nu:21:43]
 20 │   $env.config = ($env.config | upsert hooks.pre_prompt {
 21 │     let currentValue = ($env.config | get -i hooks.pre_prompt)
    ·                                           ─┬
    ·                                            ╰── get --ignore-errors was deprecated in 0.106.0 and will be removed in a future release.
 22 │     if $currentValue == null {
    ╰────
  help: This flag has been renamed to `--optional (-o)` to better reflect its behavior.

Changes

Updated config generation script to use the appropriate flag

[Copilot]

Pull request overview

Updates the autogenerated Nushell activation script to avoid a deprecation warning by switching from the deprecated get --ignore-errors (-i) flag to the renamed get --optional (-o) flag.

Changes:

• Update Nushell hooks.pre_prompt config lookup to use get -o instead of get -i.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

The activation template now uses get -o here, but internal/shell/nushell_test.go (TestNushellActivateWithPidCheck) currently asserts that get -i is present and that get -o is absent. This will cause the existing unit test suite to fail once this change lands; update the test expectations (and its comment) to match the new flag.