feat: add man pages and shell completions

[donovanglover]

Auto-generated with clap.

Note: May be ideal to replace some of the sub-commands with flags to decrease the amount of generated man pages.

Edit: Draft while I think of something better to do here

[donovanglover]

Upstream issue: https://github.com/clap-rs/clap/issues/5337

Could add shell completions now and think about man pages later.

Long-term could auto-complete bar names and other information as well.

[donovanglover]

Unfortunately I doubt I'll have time to work on this anytime soon but you're free to change anything as needed. Should also avoid duplicate code from src/ipc/commands.rs.

[JakeStanger]

No worries, thanks for the heads up. I'm happy to take it from here, appreciate the work you've done to get it this far.

[JakeStanger]

I'm going to drop manpage support for now because I see it having pretty limited use, especially when ironbar --help provides a much more ergonomic interface to see the same information. Having every subcommmand as its own page sorta sucks, and I don't like the idea of changing the CLI interface to fit it. Once the issue linked above is resolved I'd be happy to re-visit.

The completion is already useful though, so I'll merge that.

[donovanglover]

Sounds good to me. Thanks for working on this!

[JakeStanger]

Thanks for getting it started :)