Migrate package manager to Bun

[aklinker1]

Feature Request

Switch package managers from PNPM to Bun. Why?

• Tried out PNPM 10's new catalog feature and, while nice, has problems:
  • Dependency changes don't show up in changelogs: https://github.com/wxt-dev/wxt/releases/tag/wxt-v0.20.6
  • Taze/pnpm upgrade/dependabot don't work with it :/
• Bun's github action for installing the tool is faster than Node's, and should result in faster CI
• Install times should be faster as well
• Can remove tsx from dependencies
• Opens up the option to use a bun based tool for building packages (like bunup), reducing overall build times slightly

Is your feature request related to a bug?

N/A

What are the alternatives?

Continue using PNPM. Yarn, NPM, and Deno are not options in my mind:

• Yarn berry: Too much clutter and too different from NPM
• Yarn classic: Slow
• NPM: Slow
• Deno: Project doesn't support it, and it doesn't have good support for publishing to NPM. Too much work to migrate

Additional context

• Migrate from unbuild to tsdown #1628

[okineadev]

Yessss! This is really cool

Although pnpm is a bit better in terms of package manager, we can switch to Bun for high speed

[okineadev]

Also a very great idea to use bunup ⚡

[aklinker1]

Also a very great idea to use bunup ⚡

Not sold on using it quite yet, see #1628 (comment).

We'll have to see how much faster it is for us.