[CmdPal Dock] Compact mode

[niels9001]

Summary of the Pull Request

This PR introduces the following changes:

• Shaving off a few pixels of the default height in Top or Bottom mode.
• A new Compact mode that automatically hides the Subtitle and is 28px in height.

PR Checklist

• 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 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

Fixed a spell-check alert: corrected appbar to app bar in a code comment in DockWindow.xaml.cs.

Validation Steps Performed

[jiripolasek]

@niels9001 Should we update the documentation or guidance for extension devs to point out that subtitles might be completely unavailable?

[niels9001]

@niels9001 Should we update the documentation or guidance for extension devs to point out that subtitles might be completely unavailable?

Yeah.. we don't need to surface it in the UI, right?

I was thinking that compact mode in left/right mode would just use the default style for DockItemControl (== with subtitle). because there's plenty of space? Thoughts?

[niels9001]

@copilot fix spell check

[Copilot]

@copilot fix spell check

Fixed in 6e5202e — changed appbar to app bar (two words) in the comment at line 426.