refactor(devtools): simplify link classification logic in links preview component

This commit refactors the classifyLink function in the links preview component by removing unnecessary checks for non-web links and the 'nofollow' issue reporting. It enhances the handling of relative paths and same-document fragments to align with browser behavior, improving code clarity and maintainability in the SEO tab.

Author: abedshaaban

packages/devtools/src/tabs/seo-tab/links-preview.tsx

@@ -41,10 +41,9 @@ function classifyLink(anchor: HTMLAnchorElement): LinkRow {
     return { text, href, resolvedHref: null, kind: 'invalid', issues }
   }
 
-  if (href.startsWith('#')) {
-    return { text, href, resolvedHref: null, kind: 'non-web', issues }
-  }
-
+  // Resolve relative paths and same-document fragments (#section) against the
+  // current document, matching browser behavior so framework-generated hrefs
+  // (paths without origin) and hash links classify as internal when same-origin.
   let resolved: URL | null = null
   try {
     resolved = new URL(href, window.location.href)
@@ -84,12 +83,6 @@ function classifyLink(anchor: HTMLAnchorElement): LinkRow {
         message: 'External _blank link should include rel="noopener".',
       })
     }
-    if (!relTokens.includes('nofollow')) {
-      issues.push({
-        severity: 'info',
-        message: 'External link does not include nofollow.',
-      })
-    }
   }
 
   return {