Removed UWP (deprecated) (#15379)

## DESCRIBE YOUR PR
Resolves getsentry/sentry-dotnet#4497

## IS YOUR CHANGE URGENT?  

- [ ] None: Not urgent, can wait up to 1 week+

## SLA

cc: @Flash0ver 

## PRE-MERGE CHECKLIST

- [ ] Checked Vercel preview for correctness, including links
- [ ] PR was reviewed and approved by any necessary SMEs (subject matter
experts)
- [ ] PR was reviewed and approved by a member of the [Sentry docs
team](https://github.com/orgs/getsentry/teams/docs)

---------

Co-authored-by: Michi Hoffmann <cleptric@users.noreply.github.com>

Author: jamescrosswell

docs/platforms/dotnet/guides/uwp/index.mdx

@@ -1230,6 +1230,11 @@ const userDocsRedirects = [
     source: '/platforms/dotnet/guides/uwp/profiling/:path*',
     destination: '/platforms/dotnet/profiling/',
   },
+  // General .NET redirects for UWP (deprecated)
+  {
+    source: '/platforms/dotnet/guides/uwp/:path*',
+    destination: '/platforms/dotnet/guides/maui/',
+  },
   {
     source: '/platforms/dotnet/guides/aws-lambda/profiling/:path*',
     destination: '/platforms/dotnet/profiling/',