[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

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.UnitConverter/InputInterpreter.cs

@@ -237,6 +237,43 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
             }
         }
 
+        /// <summary>
+        /// Choose "UsOunce" or "ImperialOunce" according to current culture when the input contains "o.z", "o.z.", "oz" or "ounce".
+        /// </summary>
+        public static void OunceHandler(ref string[] split, CultureInfo culture)
+        {
+            HashSet<string> britishCultureNames = new HashSet<string>() { "en-AI", "en-VG", "en-GB", "en-KY", "en-MS", "en-AG", "en-DM", "en-GD", "en-KN", "en-LC", "en-VC", "en-IE", "en-GY", "en-AE" };
+            if (string.Equals(split[1], "o.z", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[1], "ounce", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[1], "o.z.", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[1], "oz", StringComparison.OrdinalIgnoreCase))
+            {
+                if (britishCultureNames.Contains(culture.Name))
+                {
+                    split[1] = "ImperialOunce";
+                }
+                else
+                {
+                    split[1] = "UsOunce";
+                }
+            }
+
+            if (string.Equals(split[3], "o.z", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[3], "ounce", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[3], "o.z.", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[3], "oz", StringComparison.OrdinalIgnoreCase))
+            {
+                if (britishCultureNames.Contains(culture.Name))
+                {
+                    split[3] = "ImperialOunce";
+                }
+                else
+                {
+                    split[3] = "UsOunce";
+                }
+            }
+        }
+
         public static ConvertModel Parse(Query query)
         {
             string[] split = query.Search.Split(' ');
@@ -257,6 +294,7 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
             InputInterpreter.FeetToFt(ref split);
             InputInterpreter.KPHHandler(ref split);
             InputInterpreter.GallonHandler(ref split, CultureInfo.CurrentCulture);
+            InputInterpreter.OunceHandler(ref split, CultureInfo.CurrentCulture);
             if (!double.TryParse(split[0], out double value))
             {
                 return null;