Fix remaining canBecomeKeyWindow warnings in BezelNotification

Removes .nonactivatingPanel from BezelNotification window style mask to eliminate console warnings while maintaining non-activating behavior through .hudWindow style.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: lucasmotta

Sources/CodeEditSourceEditor/SupportingViews/BezelNotification.swift

@@ -51,7 +51,7 @@ final class BezelNotification {
 
         let window = NSPanel(
             contentRect: .zero,
-            styleMask: [.borderless, .nonactivatingPanel, .hudWindow],
+            styleMask: [.borderless, .hudWindow],
             backing: .buffered,
             defer: true
         )