[PTRun][UnitConverter]Add support for `sq` prefix for square units

[PesBandi]

Summary of the Pull Request

Adds support for using sq instead of ^2, for example sqcm instead of cm^2.

PR Checklist

• [x] Closes: #37553, #37648
• [ ] Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• [x] Tests: Added/updated and all pass
• [x] Localization: All end user facing strings can be localized
• [x] Dev docs: No need
• [x] New binaries: None
• [ ] Documentation updated: Not yet

Detailed Description of the Pull Request / Additional comments

• Replaces sq with ² if before a unit that can be square.
• Works for the following units: s, μm, mm, cm, dm, m, km, mil, in, ft, yd, mi, nmi, ft (US)
• Unlike the original PR, this also works with more complex units, such as m/sqs instead of m/s^2.

Validation Steps Performed

Added tests, manually tested a bunch of units

[github-actions[bot]]

@check-spelling-bot Report

:red_circle: Please review

See the :open_file_folder: files view, the :scroll:action log, or :memo: job summary for details.

Unrecognized words (1)

nmi

These words are not needed and should be removed

ahk AMPROPERTY AMPROPSETID Breadcrumb CDEF comdef ddf devenum DEVMON DEVSOURCE DGR DIIRFLAG dshow DVH DVHD DVSD DVSL EData ERole fdw FILEINFOSIG Filtergraph Filterx HCERTSTORE IKs iljxck IYUV KSPROPERTY lcb ldx lld LONGLONG LTRB majortype makecab MEDIASUBTYPE mediatype mfplat mic mjpg Msimg msiquery ORAW outpin overlaywindow PAUDIO PINDIR Pnp ppmt previouscamera PROPBAG propvarutil reencoded REFGUID REGFILTER REGFILTERPINS REGPINTYPES regsvr shmem sizeread stl strsafe strutil subquery SYNCMFT TMPVAR vcdl vdi vid VIDCAP VIDEOINFOHEADER vih webcam wistd WVC

To accept these unrecognized words as correct and remove the previously acknowledged and now absent words, you could run the following commands

... in a clone of the [email protected]:PesBandi/PowerToys.git repository on the launcher-unitconvert-square branch (:information_source: how do I use this?):

curl -s -S -L 'https://raw.githubusercontent.com/check-spelling/check-spelling/v0.0.24/apply.pl' |
perl - 'https://github.com/microsoft/PowerToys/actions/runs/13766250399/attempts/1'

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[moooyo]

LGTM.

But, could you please add at least one picture in the description to show the usage of your new units format?

[moooyo]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[PesBandi]

Hi @moooyo, thanks for the review. I've added some screenshots to the description, you can check them out.

[PesBandi]

Do you think I should mention this in the docs?

[moooyo]

Do you think I should mention this in the docs?

I believe so. It's better.