[Settings] Sort Languages ComboBox

[davidegiacometti]

Summary of the Pull Request

Sort the languages ComboBox keeping the default on top.

PR Checklist

• Closes: The Application language list is not sorted alphabetically. #35268
• 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

The importance of using StringComparison.CurrentCultureIgnoreCase can be noted using Portuguese.

Validation Steps Performed

Tested using PowerToys.Settings.pri from the latest stable build.

• Verified that the languages in the ComboBox are sorted with the default on top
• Switched multiple languages
• Verified that the UI and language.json are in sync

[davidegiacometti]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[stefansjfw]

looks good! Thanks!