Update WinGet configuration file location & extension

[mdanish-kh]

Summary of the Pull Request

The new convention for WinGet configuration files if to place them in a .config directory with file extension .winget. See https://learn.microsoft.com/en-us/windows/package-manager/configuration/create#file-naming-convention

PR Checklist

• Closes: #WinGet Configuration Updates #37636
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated
• New binaries: Added on the required places
  • JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • YML for CI pipeline for new test projects
  • YML for signed pipeline
• 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

Validation Steps Performed

[denelon]

Related to:

• WinGet Configuration Updates #37636

[crutkas]

nice!

[crutkas]

can we move the .configurations into the .config folder?

[mdanish-kh]

@crutkas Are you suggesting a structure as .config/. configurations/<.winget files>? I'm not sure if that would be in line with the recommendation 🤔. @denelon Any thoughts?

[mdanish-kh]

My only concern would be if others start to adopt the powertoys way since it has been mentioned as a "reference repository" in quite a few places