Fix generated CSS type declaration

[ValentinH]

Summary

• fix the generated react-easy-crop.css.d.ts file to write a real newline after export {}
• prevents the published CSS declaration from containing a literal \n sequence

Fixes #650.

Reproduction

Created a blank TypeScript project with react-easy-crop@6.0.1 and imported react-easy-crop/react-easy-crop.css.

Published 6.0.1 contains these bytes in react-easy-crop.css.d.ts:

export {}\n

Running ./node_modules/.bin/tsc --noEmit fails with:

TS1127: Invalid character.

Verification

• pnpm build
• od -c dist/react-easy-crop.css.d.ts shows export {} followed by a real newline
• packed dist and installed it in the blank repro project
• ./node_modules/.bin/tsc --noEmit passes in the repro project
• ./node_modules/.bin/vite build passes in the repro project
• ran the repro app in Vite dev mode, verified the cropper is constrained to its container, drag updates crop state/image transform, and there are no browser console errors
• pnpm type-check

[github-actions]

🚀 PR was released in v6.0.2 🚀