feat: add nodes page with hosting information and benefits

- Created new NodePage with hero section explaining the Mycelium node network
- Added NodeBenefits component showcasing three key advantages of hosting nodes
- Integrated nodes route into navigation (header, footer, and routing configuration)

src/components/Footer.tsx

@@ -30,6 +30,9 @@ export function Footer() {
               <Link to="/pods" className="text-sm text-gray-700 hover:text-cyan-500 transition-colors">
                 Pods
               </Link>
+              <Link to="/nodes" className="text-sm text-gray-700 hover:text-cyan-500 transition-colors">
+                Nodes
+              </Link>
             </nav>
           </div>
           <div className="group relative -mx-4 flex items-center self-stretch p-4 transition-colors hover:bg-gray-100 sm:self-auto sm:rounded-2xl lg:mx-0 lg:self-auto lg:p-6">