[WIP] Fix .NET 8 Desktop Runtime detection issue

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Cannot find .NET 8 Desktop Runtime even when it's installed</issue_title>
<issue_description>I'm having this error when I try to launch Legendary Explorer from the Tools menu:

I have already installed .NET 8 Desktop Runtime for x64, and this is what I get when running dotnet-info:

Host:
  Version:      8.0.20
  Architecture: x64
  Commit:       574100b692
  RID:          win-x64

.NET SDKs installed:
  No SDKs were found.

.NET runtimes installed:
  Microsoft.NETCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Am I doing something wrong?</issue_description>

Comments on the Issue (you are @copilot in this section)

@Mgamerz The version detector uses `dotnet --list-runtimes` command, and attempts to parse the output. The code to detect versions is listed here: https://github.com/ME3Tweaks/ME3TweaksCore/blob/master/ME3TweaksCore/Helpers/DotNetRuntimeVersionDetector.cs

• Fixes Cannot find .NET 8 Desktop Runtime even when it's installed #471

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