Replace fast-glob with alternative in astro

[43081j]

Astro uses fast-glob for two things:

• Globbing files
• Converting paths to glob patterns

For the former, we could switch to a leaner/faster alternative

Example fast-glob usage:

https://github.com/withastro/astro/blob/174ce25f619ea80f77e52f8d2ca864ecc63de938/packages/astro/src/content/types-generator.ts#L88-L96

Two possible alternatives which are leaner and faster:

• tiny-glob
• fdir

[Namchee]

It seems that astro uses kleur too. Might be another cleanup opportunity.