Add .NET 11 Preview 2 WPF what's new notes

[Copilot]

Updates the WPF what's new article to cover .NET 11 Preview 2, adding a DWM crash resilience fix and the Preview 2 release announcement link.

Changes

• net110.md

  • Updated title, description, H1 heading, and intro paragraph to say "WPF for .NET 11 Preview 2"
  • Added .NET 11 Preview 2 release announcement link
  • Added bug fix entry: WPF now guards against crashes caused by Desktop Window Manager (DWM) failures
  • Removed the "released in February 2026" sentence (no longer accurate as a single date)
  • Fixed pre-existing grammatical error: "some of most the" → "some of the most"
  • Updated ms.date

• index.md

  • Updated description and section heading from "Preview 1" to "Preview 2"
  • Updated link text to "Overview of WPF on .NET 11 Preview 2"
  • Updated ms.date

Original prompt

---

This section details on the original issue you should resolve

<issue_title>.NET 11 Preview 2 Notes</issue_title>
<issue_description>### Describe the issue or suggestion

Update the WPF and WinForms what's new articles with notes about .NET 11 preview 2.</issue_description>

<agent_instructions>Start work on this. Only the WPF notes have come through so I'll have to talk to you again in the PR for the WinForms updates. Here's the change, please edit and reword it:

Guard against the Desktop Window Manager crashing and causing the WPF app to crash.
</agent_instructions>

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

• Fixes .NET 11 Preview 2 Notes #2206

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[adegeo]

@copilot restore the preview text on headers and titles; we want to make it clear this is a preview release

[Copilot]

@copilot restore the preview text on headers and titles; we want to make it clear this is a preview release

Done in 0220a67. "Preview 2" is now restored in the net110.md title, description, H1 heading, and intro sentence, as well as the link text in index.md.