add the missing headers in windows

[flutter-painter]

Fixed the windows compatibility issue

Pre-launch Checklist

• [x] I made sure the project builds.
• [x] I read the Contributor Guide and followed the process outlined there for submitting PRs.
• [ x I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is does not need version changes.
• [x] I updated CHANGELOG.md to add a description of the change.
• [x] I updated/added relevant documentation (doc comments with ///).
• [ ] I rebased onto main. -> rebase what ?
• [ ] I added new tests to check the change I am making, or this PR does not need tests. -> No need, here we simply fix the bloody thing
• [x] I made sure all existing and new tests are passing.
• [x] I ran dart format . and committed any changes.
• [x] I ran flutter analyze and fixed any errors.

[flutter-painter]

Hi @ened Could you please review ?