feat(update): update mode

[yuvalkarif]

fix: #2
I've completed the first version of the update feature. If this approach looks good, I'd be happy to add an interactive mode next.

Key points and questions:

1. Added settings.json file since it's recommended by @antfu/eslint-config and needed for proper editor setup

2. Currently using the YAML parser which is well-tested, but we could switch to parsing the pnpm.workspace file manually since its format is straightforward. What do you prefer?

3. Should we add automatic code formatting (using Prettier/ESLint) when writing files?

4. Since pnpm list doesn't show version requirement symbols (like ^ or >=), I defaulted to using ^. We can either:

   • Parse this from package.json files
   • Let users specify their preference in interactive mode

5. Updated the console output colors, using taze as inspiration for the color scheme

6. Note: Originally planned to support peerDependencies and optionalDependencies, but removed this for now since pnpm list only shows dev dependency status.