fix: move prettier to dev dependency

[niclim]

Motivation and Context

When prettier is defined in dependencies, it gets pulled into when installed in other packages. Specifically, when we install modelcontextprotocol/ext-apps -> prettier also gets installed, which is different to our prettier package. This can change the conflict with downstream repo's prettier version and change how code is formatted

How Has This Been Tested?

Should have no user facing changes (dev only)

• pulled in by installing "@modelcontextprotocol/ext-apps": "git://github.com/niclim/ext-apps.git#nl/move-prettier-to-dev-deps ", and confirmed that we're not longer pulling in the prettier defined in @modelcontextprotocol/ext-apps
• ran npm run prettier -> formats with no changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/ext-apps@179

commit: 037c37d

[ochafik]

Thanks!

[ochafik]

Thanks @niclim ! Would you mind updating your branch? CI should turn green now that #180 (comment) got in.

[niclim]

@ochafik should be updated now!