Feat: Refine UI and consolidate components

- Updated the heading in the Pastel page from 'Color Playground' to 'Pastel'.
- Adjusted the logo size in the Hero component for better visual balance.
- Removed duplicate/unused Footer components from pastel layout and ui directories.

components/units/ui/Footer.tsx

@@ -1,85 +0,0 @@
-import { Heart, Github, Code2 } from 'lucide-react';
-import Link from 'next/link';
-
-export default function Footer() {
-  const currentYear = new Date().getFullYear();
-
-  return (
-    <footer className="border-t mt-16 bg-background">
-      <div className="w-full max-w-7xl mx-auto px-4 py-8">
-        <div className="grid grid-cols-1 md:grid-cols-3 gap-8">
-          {/* About */}
-          <div>
-            <h3 className="font-semibold mb-3">Units UI</h3>
-            <p className="text-sm text-muted-foreground">
-              A spectacular unit conversion app supporting 23 measurement categories
-              with 187 units. Built with Next.js 16, TypeScript, and Tailwind CSS 4
-            </p>
-          </div>
-
-          {/* Features */}
-          <div>
-            <h3 className="font-semibold mb-3">Features</h3>
-            <ul className="space-y-2 text-sm text-muted-foreground">
-              <li>• Real-time bidirectional conversion</li>
-              <li>• Fuzzy search across all units</li>
-              <li>• Dark mode support</li>
-              <li>• Conversion history</li>
-              <li>• Keyboard shortcuts</li>
-              <li>• Copy & favorite units</li>
-            </ul>
-          </div>
-
-          {/* Links */}
-          <div>
-            <h3 className="font-semibold mb-3">Quick Links</h3>
-            <ul className="space-y-2 text-sm">
-              <li>
-                <Link
-                  href="/"
-                  className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
-                >
-                  Back to Kit Home
-                </Link>
-              </li>
-              <li>
-                <a
-                  href="https://github.com/valknarness/units-ui"
-                  target="_blank"
-                  rel="noopener noreferrer"
-                  className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
-                >
-                  <Github className="h-4 w-4" />
-                  GitHub Repository
-                </a>
-              </li>
-              <li>
-                <a
-                  href="https://github.com/convert-units/convert-units"
-                  target="_blank"
-                  rel="noopener noreferrer"
-                  className="text-muted-foreground hover:text-foreground transition-colors flex items-center gap-2"
-                >
-                  <Code2 className="h-4 w-4" />
-                  convert-units Library
-                </a>
-              </li>
-            </ul>
-          </div>
-        </div>
-
-        {/* Bottom Bar */}
-        <div className="mt-8 pt-8 border-t flex flex-col sm:flex-row justify-between items-center gap-4 text-sm text-muted-foreground">
-          <div className="flex items-center gap-1">
-            Made with{' '}
-            <Heart className="h-4 w-4 text-red-500 fill-red-500" />{' '}
-            using Next.js 16 & Tailwind CSS 4
-          </div>
-          <div>
-            © {currentYear} Units UI. All rights reserved
-          </div>
-        </div>
-      </div>
-    </footer>
-  );
-}