CmdPal: Update Extension SDK docs link to Microsoft Learn

[RubenFricke]

Summary of the Pull Request

Update CmdPal SDK docs links to point to Microsoft Learn as requested in #40994.

PR Checklist

• Closes: CmdPal: Improve discoverability for new authors by updating Extension SDK Docs link #40994

• Communication: I've discussed this with core contributors already. If the 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](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/
    Product.wxs) for new binaries and localization folder
  • [YML for CI pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-
    powertoys-steps.yml) for new test projects
  • YML for signed pipeline
• Documentation updated: If checked, please file a pull request on [our docs repo](https://github.com/
  MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys) and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Updated links in:
- src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/GeneralPage.xaml
- src/modules/cmdpal/extensionsdk/README.md

Note: The issue proposes linking directly to “Command Palette / Developer Docs / Extensibility overview” on
Learn. I noticed the project often uses fwlink/aka.ms redirects instead of direct Learn URLs. If creating a
redirect is preferred (or if I can create one), let me know and I’ll update the links accordingly.

Validation Steps Performed

Manually verified that the links resolve to the Microsoft Learn Command Palette extensibility overview.

[jiripolasek]

Hi,

the original intention and a more effective solution would be to redirect the forwarding link rather than hard-coding a URL.

[lei9444]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[niels9001]

Great catch! Instead of hardcoding the URL, let's use the new aka.ms link instead

[jiripolasek]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[michaeljolley]

Outdated