[FileLocksmith] Switch IPC between ctx menu dll and UI from writing to file to pipe

[stefansjfw]

Summary of the Pull Request

PR Checklist

• Closes: Change FileLocksmith activation bahaviour #31393
• 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

Tested local and release CI build

[jaimecbernardo]

Gave it a test, but restarting as administrator seems to break this change. Perhaps that's one of the reasons why it used a file in the first place? 🤔

[jaimecbernardo]

I mean opening file locksmith and then pressing the "restart as administrator" button from inside the app:

[jaimecbernardo]

Higher priorities at this moment. Changing it to a draft for the time being.

[Jay-o-Way]

@stefansjfw how is this going? 🙂

[stefansjfw]

@stefansjfw how is this going? 🙂

Still on hold. What Jaime said in the comment above... :)