Match MethodHeader anchor structure to Starlight's format

Align with Starlight's exact anchor HTML structure so the
custom anchor script in Head.astro can enhance all anchors
uniformly with link-icon-wrapper and check-icon-wrapper.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: Kyle McLaren

src/components/react/api/MethodHeader.tsx

@@ -109,24 +109,15 @@ export function MethodHeader({
           href={`#${id}`}
           aria-label={`Link to ${title}`}
         >
-          <span className="sl-anchor-icon">
-            <span className="link-icon-wrapper">
-              <svg
-                xmlns="http://www.w3.org/2000/svg"
-                width="16"
-                height="16"
-                viewBox="0 0 24 24"
-                fill="none"
-                stroke="currentColor"
-                strokeWidth="2"
-                strokeLinecap="round"
-                strokeLinejoin="round"
-              >
-                <path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71" />
-                <path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71" />
-              </svg>
-            </span>
+          <span aria-hidden="true" className="sl-anchor-icon">
+            <svg width="16" height="16" viewBox="0 0 24 24">
+              <path
+                fill="currentcolor"
+                d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"
+              />
+            </svg>
           </span>
+          <span className="sr-only">Section titled "{title}"</span>
         </a>
       </div>
       <div className="method-header-badges">