Directory Separators aren't normalized when adding Portable Packages to PATH

[Trenly]

Brief description of your issue

When a portable package is added to path, and it is in a Subfolder, the directory separators aren't normalized

Steps to reproduce

PS C:\Users\WDAGUtilityAccount\Desktop\winget-pkgs> winget install OtfriedCheong.Ipe
PS C:\Users\WDAGUtilityAccount\Desktop\winget-pkgs> echo $env:Path
C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Users\WDAGUtilityAccount\AppData\Local\Microsoft\WindowsApps;C:\Users\WDAGUtilityAccount\AppData\Local\Microsoft\WinGet\Packages\OtfriedCheong.Ipe__DefaultSource\ipe-7.2.28/bin

Expected behavior

All path separators should be normalized to the default separator character when adding packages to PATH, regardless of which directory separator was used in the manifest

Actual behavior

Directory separators may be mixed, depending on what was in the manifest

Environment

PS C:\Users\WDAGUtilityAccount\Desktop\winget-pkgs> winget --info
Windows Package Manager v1.9.25200
Copyright (c) Microsoft Corporation. All rights reserved.

Windows: Windows.Desktop v10.0.26100.2454
System Architecture: X64
Package: Microsoft.DesktopAppInstaller v1.24.25200.0

Winget Directories
-------------------------------------------------------------------------------------------------------------------------------
Logs                               %LOCALAPPDATA%\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\LocalState\DiagOutputDir
User Settings                      %LOCALAPPDATA%\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\LocalState\settings.json
Portable Links Directory (User)    %LOCALAPPDATA%\Microsoft\WinGet\Links
Portable Links Directory (Machine) C:\Program Files\WinGet\Links
Portable Package Root (User)       %LOCALAPPDATA%\Microsoft\WinGet\Packages
Portable Package Root              C:\Program Files\WinGet\Packages
Portable Package Root (x86)        C:\Program Files (x86)\WinGet\Packages
Installer Downloads                %USERPROFILE%\Downloads

Links
---------------------------------------------------------------------------
Privacy Statement   https://aka.ms/winget-privacy
License Agreement   https://aka.ms/winget-license
Third Party Notices https://aka.ms/winget-3rdPartyNotice
Homepage            https://aka.ms/winget
Windows Store Terms https://www.microsoft.com/en-us/storedocs/terms-of-sale

Admin Setting                             State
--------------------------------------------------
LocalManifestFiles                        Enabled
BypassCertificatePinningForMicrosoftStore Disabled
InstallerHashOverride                     Disabled
LocalArchiveMalwareScanOverride           Enabled
ProxyCommandLineOptions                   Disabled
DefaultProxy                              Disabled

[Trenly]

[Policy] Issue-Bug
[Policy] Portable
[Policy] Command-Install
[Policy] Area-Path