[PT-Run] Resolving the confusion between ounces (#33962)

## Summary of the Pull Request
- Replaced "ounce" to "usounce" and "imperialounce" for two different
results

## PR Checklist

- [x] **Closes:** #32841 
- [x] **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:** Added/updated
- [x] **New binaries:** Added on the required places
- [x] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [x] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [x] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [x] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [x] **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

<!-- Provide a more detailed description of the PR, other things fixed
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
- Convert `ounce` to `usounce` and `imperialounce` and show the
converted results

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
- Manual validation

.github/actions/spell-check/expect.txt

@@ -672,6 +672,7 @@ imageresizerinput
 imageresizersettings
 imagingdevices
 ime
+imperialounce
 inetcpl
 Infobar
 INFOEXAMPLE
@@ -1672,6 +1673,7 @@ USERDATA
 Userenv
 USESHOWWINDOW
 USESTDHANDLES
+usounce
 USRDLL
 UType
 uuidv