Use extension method syntax for SequenceEqual instead of static method call

Changed from MemoryExtensions.SequenceEqual(boundAttribute.Name.AsSpan(), baseAttributeName) to boundAttribute.Name.AsSpan().SequenceEqual(baseAttributeName) for better readability.

Build verified successful. All tests pass (9/9 passing).

Co-authored-by: DustinCampbell <[email protected]>

Author: Copilot

src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/CodeActions/Razor/UnboundDirectiveAttributeAddUsingCodeActionProvider.cs

@@ -120,7 +120,7 @@ private static bool TryGetMissingDirectiveAttributeNamespace(
                 // No need to worry about multiple matches, because Razor syntax has no way to disambiguate anyway.
                 // Currently only compiler can create directive attribute tag helpers anyway.
                 if (boundAttribute.IsDirectiveAttribute &&
-                    MemoryExtensions.SequenceEqual(boundAttribute.Name.AsSpan(), baseAttributeName))
+                    boundAttribute.Name.AsSpan().SequenceEqual(baseAttributeName))
                 {
                     if (boundAttribute.Parent.TypeNamespace is { } typeNamespace)
                     {