Add icon for powertoys extension and quickaccess exe (#44674)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request

As title, inject powertoys icon to these two exe

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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **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

<!-- 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

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Add two self contained icon to the two process:
<img width="678" height="382" alt="image"
src="https://github.com/user-attachments/assets/f682ab93-75ed-4292-ba3a-78b65795d3cc"
/>

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PowerToys/Microsoft.CmdPal.Ext.PowerToys.csproj

@@ -7,6 +7,7 @@
 		<OutputType>WinExe</OutputType>
 		<RootNamespace>PowerToysExtension</RootNamespace>
 		<ApplicationManifest>app.manifest</ApplicationManifest>
+		<ApplicationIcon>..\..\..\..\runner\svgs\icon.ico</ApplicationIcon>
 		<PublishProfile>win-$(Platform).pubxml</PublishProfile>
 		<EnableMsixTooling>false</EnableMsixTooling>
 		<WindowsPackageType>None</WindowsPackageType>

src/settings-ui/QuickAccess.UI/PowerToys.QuickAccess.csproj

@@ -7,6 +7,7 @@
     <TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
     <RootNamespace>Microsoft.PowerToys.QuickAccess</RootNamespace>
     <AssemblyName>PowerToys.QuickAccess</AssemblyName>
+    <ApplicationIcon>..\..\runner\svgs\icon.ico</ApplicationIcon>
     <UseWinUI>true</UseWinUI>
     <WindowsPackageType>None</WindowsPackageType>
     <WindowsAppSDKSelfContained>true</WindowsAppSDKSelfContained>