chore: remove BackToTop component and scroll progress bar

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/page.tsx

@@ -3,13 +3,11 @@ import Hero from '@/components/Hero';
 import Stats from '@/components/Stats';
 import ToolsGrid from '@/components/ToolsGrid';
 import Footer from '@/components/Footer';
-import BackToTop from '@/components/BackToTop';
 
 export default function Home() {
   return (
     <main className="relative min-h-screen text-foreground">
       <AnimatedBackground />
-      <BackToTop />
       <Hero />
       <Stats />
       <ToolsGrid />