feat: Chrome extension — Save any webpage as a Skill (#62)

* fix: remove redundant GitHub Star button from Hero section

Star count is already visible in navbar and stats bar on all screen sizes.

* fix: keep GitHub Star button on mobile, hide on desktop

Star button uses sm:hidden so it only appears on mobile where
the navbar star badge is less prominent. On desktop (sm+), the
navbar star badge is sufficient.

Author: rohitg00

docs/skillkit/components/Hero.tsx

@@ -107,10 +107,6 @@ export function Hero({ version, stars }: HeroProps): React.ReactElement {
     }
   }
 
-  function openGitHub(): void {
-    window.open('https://github.com/rohitg00/skillkit', '_blank', 'noopener,noreferrer');
-  }
-
   const isTyping = visibleLines < TERMINAL_LINES.length && TERMINAL_LINES[visibleLines].type === 'cmd';
   const isComplete = visibleLines >= TERMINAL_LINES.length;
 
@@ -186,9 +182,11 @@ export function Hero({ version, stars }: HeroProps): React.ReactElement {
                 </svg>
                 Add to Chrome
               </a>
-              <button
-                onClick={openGitHub}
-                className="inline-flex items-center gap-2 border border-zinc-700 px-3 py-2 hover:border-zinc-500 transition-colors group"
+              <a
+                href="https://github.com/rohitg00/skillkit"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="sm:hidden inline-flex items-center gap-2 border border-zinc-700 px-3 py-2 hover:border-zinc-500 transition-colors group"
               >
                 <svg className="w-4 h-4 text-zinc-400 group-hover:text-white transition-colors" fill="currentColor" viewBox="0 0 24 24">
                   <path fillRule="evenodd" d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z" clipRule="evenodd" />
@@ -203,7 +201,7 @@ export function Hero({ version, stars }: HeroProps): React.ReactElement {
                     <span className="font-mono text-sm text-white font-medium">{stars}</span>
                   </>
                 )}
-              </button>
+              </a>
             </div>
           </div>