chore: reduce bundle size

[userquin]

Description

This PR includes:

• remove find-up, replaced with package-manager-detector (find-up 6 dependencies and package-manager-detector 0 dependencies)
• replace fast-glob with tinyglobby (fast-glob 17 dependencies and tinyglobby 2 dependencies)
• replace @jsdevtools/ez-spawn with tinyexec (@jsdevtools/ez-spawn 9 dependencies and tinyexec 0 dependencies)
• replace kleur with picocolors (kleur 0 dependencies and picocolors 0 dependencies)

Right now ni build is failing. ni tgz file from 107KB to 77KB

We should remove agent.ts module, not being used. (agent module re-exporting pm detector stuff)

Linked Issues

Additional context

[userquin]

@benmccann suggests picocolors (cjs only), the size is a little smaller than yoctocolors (esm only).

[ryoppippi]

Created a pr using picocolors

[ryoppippi]

@userquin I think yoctocolors is better because yoctocolors is tree-shakable while picocolors is not

[userquin]

don't merge yet, I'm going to include yoctocolors and cleanup

[userquin]

There is no difference using picocolors or yoctocolors (tgz file):

on left picocolors, on right yoctocolors

[ryoppippi]

@userquin Thanks

[userquin]

I'm going to use tinyrainbow, we're using it in Vitest

(Upps: 263 bytes bigger using tinyrainbow)

[43081j]

You should stick to picocolors imo and open issues upstream if you think there's a limitation

It has been adopted by most other large projects (and more to come). Think it is better to align than take yet another rehash of the same algorithm/implementation

pico is also the fastest