Settings: Settings search fixes (#41381)

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fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Fix 3 issues

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## PR Checklist

- [x] Closes: #41369, #41374, #41380
- [ ] **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](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
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](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **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

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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

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wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed


https://github.com/user-attachments/assets/0e0df9fb-5aca-4b26-9d53-e6ddc49cab04

---------

Co-authored-by: Niels Laute <niels.laute@live.nl>
Co-authored-by: Jiří Polášek <me@jiripolasek.com>

src/settings-ui/Settings.UI/ViewModels/MouseUtilsViewModel_MouseJump.cs

@@ -126,14 +126,21 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
         {
             var assembly = Assembly.GetExecutingAssembly();
             var assemblyName = new AssemblyName(assembly.FullName ?? throw new InvalidOperationException());
+
+            // Build the fully-qualified manifest resource name. Historically, subtle casing differences
+            // (e.g. folder names or the assembly name) caused exact (case-sensitive) lookup failures on
+            // some developer machines when the embedded resource's actual name differed only by case.
+            // Manifest resource name comparison here does not need to be case-sensitive, so we resolve
+            // the actual name using an OrdinalIgnoreCase match, then use the real casing for the stream.
             var resourceName = $"Microsoft.{assemblyName.Name}.{filename.Replace("/", ".")}";
             var resourceNames = assembly.GetManifestResourceNames();
-            if (!resourceNames.Contains(resourceName))
+            var actualResourceName = resourceNames.FirstOrDefault(n => string.Equals(n, resourceName, StringComparison.OrdinalIgnoreCase));
+            if (actualResourceName is null)
             {
-                throw new InvalidOperationException($"Embedded resource '{resourceName}' does not exist.");
+                throw new InvalidOperationException($"Embedded resource '{resourceName}' (case-insensitive) does not exist.");
             }
 
-            var stream = assembly.GetManifestResourceStream(resourceName)
+            var stream = assembly.GetManifestResourceStream(actualResourceName)
                 ?? throw new InvalidOperationException();
             var image = (Bitmap)Image.FromStream(stream);
             return image;