New+ Windows 10 support

[cgaarden]

Summary of the Pull Request

This PR provides New+ support for Windows 10.

PR Checklist

• Implementation of: add support for new+ on windows 10 #35484
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• [n/a] Tests: Added/updated and all pass
• Localization: All end user facing strings can be localized
• [n/a] Dev docs: Added/updated
• [n/a] New binaries: Added on the required places
  • [required?] JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • [n/a] YML for CI pipeline for new test projects
  • YML for signed pipeline
• [n/a] Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

• Added Windows 10 support, without breaking Windows 11 support

Validation Steps Performed

Windows 10

1. Installed on clean Windows 10 Home version (en_US)
2. (test-signing is not needed)
3. Desktop: Icon view: Tier 1 context menu New+ folder and files
4. In folder on Desktop: Detailed view: Tier 1 context menu New+ folder and files
5. Reviewed logs in NewPlus.ShellExtension\Logs\v0.0.1

Windows 11

1. Installed on clean Windows 11 Sandbox (en_US)
2. Manually test-signed
3. Desktop: Icon view: Tier 1 context menu New+ folder and files
4. In folder on Desktop: Detailed view: Tier 1 context menu New+ folder and files
5. Reviewed logs in NewPlus.ShellExtension\Logs\v0.0.1

[jaimecbernardo]

Thank you for opening this PR. Right now fixing some stuff so I can get builds out of Dart CI to test, so I'll be pushing some commits 😄