AFDocs fixes: avoid redirect-behavior false positive in anchor copy handler (#130)

Replace `window.location.href = href` with `window.location.hash = url.hash`
in the heading anchor click handler. The old pattern triggered the afdocs
`redirect-behavior` check, which heuristically scans the first 10 KB of HTML
for `location.href =` assignments and classifies any match as a JavaScript
redirect. Since anchor links are always fragment-only, `location.hash` is
functionally equivalent and avoids the false positive.

Co-authored-by: Oz <oz-agent@warp.dev>

Author: rachaelrenk

src/components/CustomHead.astro

@@ -109,7 +109,10 @@ const fontsHref =
 			history.pushState(null, '', url);
 			showCopiedFeedback(anchor);
 		} catch {
-			window.location.href = href;
+			// Navigate to the anchor fragment without using href-based
+			// navigation, which the afdocs redirect-behavior check
+			// misclassifies as a JS redirect when scanned in inline scripts.
+			window.location.hash = url.hash;
 		}
 	});
 </script>