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/Header.tsx

@@ -70,6 +70,12 @@ export function Header() {
               >
                 Pods
               </Link>
+              <Link
+                to="/nodes"
+                className="text-base/7 tracking-tight text-gray-700 hover:text-cyan-500 transition-colors"
+              >
+                Nodes
+              </Link>
             </div>
           </div>
           <div className="flex items-center gap-6">
@@ -155,6 +161,13 @@ export function Header() {
                 >
                   Pods
                 </Link>
+                <Link
+                  to="/nodes"
+                  className="-mx-3 block rounded-lg px-3 py-2 text-base font-semibold leading-7 text-gray-900 hover:bg-gray-50"
+                  onClick={() => setMobileMenuOpen(false)}
+                >
+                  Nodes
+                </Link>
               </div>
               <div className="py-6">
                 <Button