🐛 fix some parser issues with type signatures

[AucaCoyan]

When I updated nu to 101, the completions of poetry failed because of a missing :
this

def "nu-complete poetry python-versions" [] nothing -> list<string> {

for this

def "nu-complete poetry python-versions" []: nothing -> list<string> {

Fixed a couple of places and some other parser issues

[AucaCoyan]

I recently made a breaking change in [9c80b6b], I had to make a main function in order to be able to import the script from another place.
It's not imported anywhere in this repo, but probably the user will note some changes

[AucaCoyan]

and finally, I don't know how to solve the permission issue on the CI:

lint: ❌ /home/runner/work/nu_scripts/nu_scripts/modules/cwdhist/mod.nu has errors:
╭───┬──────────┬───────────────────────────────────────────────────────────────╮
│ # │ severity │                            message                            │
├───┼──────────┼───────────────────────────────────────────────────────────────┤
│ 0 │        1 │ Error:                                                        │
│   │          │   × Problem with                                              │
│   │          │ [/home/runner/.cache/nu_cwd_history.sqlite], Permission       │
│   │          │   │                                                           │
│   │          │ denied                                                        │
│   │          │     ╭─[/home/runner/work/nu_scripts/nu_scripts/modules/       │
│   │          │ cwdhist/mod.nu:80:32]                                         │
│   │          │  79 │     if not ($env.cwd_history_file                       │
│   │          │ | path exists) {                                              │
│   │          │  80 │         empty-sqlite | save -f                          │
│   │          │ $env.cwd_history_file                                         │
│   │          │     ·                                                         │
│   │          │ ──────────┬──────────                                         │
│   │          │     ·                                                         │
│   │          │        ╰── No such file or directory (os error 2)             │
│   │          │  81 │                                                         │
│   │          │   open $env.cwd_history_file | query db "create table if not  │
│   │          │ exists cwd_history (                                          │
│   │          │     ╰────                                                     │
│   │          │                                                               │
│   │          │                                                               │
╰───┴──────────┴───────────────────────────────────────────────────────────────╯

Can I have some help here? 🙏 Should I revert the changes? Can I fix the problem? Should we merge as is?

[fdncred]

I don't trust the CI script and wouldn't worry about it.

[fdncred]

Thanks

[AucaCoyan]

To you!