feat(platforms): add support for fish shell

[XXiaoA]

[AlexvZyl]

Today I learned about fish_config :)

A few things I think should be the case:

• Strings should be green
• Comments should be gray4
• Autosuggestions should be gray3 (probably not the same as comments)
• Normal typing should either be white0 or blue1
• Maybe use yellow or orange for operators and functions

What do you think?

[XXiaoA]

@AlexvZyl Thx for ur advice. I tried gray3 for autosuggesting, but it is too dim, i think.

Maybe gray5 is more suitable ?

[XXiaoA]

I tweak a lot.

simplescreenrecorder-2023-07-18_21.38.48.mp4

[XXiaoA]

Ummm orange looks like red which refer to error of param. Yellow is easier to tell between error and normal, i think.

[AlexvZyl]

I did not forget about this PR. Would you mind showing me a screenshot of what the final product looks like? Sorry for leaving you hanging.

[XXiaoA]

Here.

Anything else should be adjusted?

[AlexvZyl]

This color seems off.

Can you make that the normal orange?

[XXiaoA]

This color seems off. Can you make that the normal orange?

This git status are showed by starship, which is not related to fish. 🤣
https://github.com/XXiaoA/dotfiles/blob/f514270e01ad590cdbfb5fdac347f9fe64144101/starship/starship.toml#L13

[AlexvZyl]

Did you set the terminal colors? Because both fish and starship should be using the terminal colors.

[XXiaoA]

I don't remember I set the terminal colors manually.

[AlexvZyl]

Hmm... Becase now that I think of it, you actually want to set the terminal colors and not each component running in the terminal. What terminal are you using?

[XXiaoA]

Wezterm. And I have used nordic's wezterm theme

[AlexvZyl]

There might be some colors missing in the wezterm theme I think.

[XXiaoA]

Okay. Anyway, thanks for merging