Switch from prettier + eslint to Biome

[TimoGlastra]

Example of setup can be found here: https://github.com/openwallet-foundation-labs/oid4vc-ts/blob/main/biome.json

https://github.com/openwallet-foundation-labs/oid4vc-ts/blob/main/package.json#L14-L15

Things to consider:

• migration of all ESLint rules to Biome. Some may not be needed, but e.g. no restricted globals would help: https://github.com/openwallet-foundation/credo-ts/blob/main/.eslintrc.js#L78

Wait for all big PRs that are open to be merged?

• refactor!: didcomm module #2127

[genaris]

Everything that helps to improve CI performance will be well received, and certainly eslint is getting very, very slow since some time. I don't have experience with Biome but I think we could give a try.

[berendsliedrecht]

Basically all projects I start now use Biome and i strongly prefer it over prettier+eslint. It does not require 10 plugins for everything to work, it is insanely fast and way easier to configure.

I think we can introduce it with just the config some rules off. And slowly in following PRs turn each rule on with the fixes. Might be a nicer review process because of that.

[TimoGlastra]

@sairanjit the big didcomm PR got merged, so feel free to take a stab at the biome setup!

[sairanjit]

Sure @TimoGlastra I will pick this soon.