refactor: increase vertical padding on large screens in NodeHero

- Changed lg:py-16 to lg:py-24 for consistent spacing with other hero sections

src/pages/nodes/NodeHero.tsx

@@ -12,7 +12,7 @@ export function NodeHero() {
         style={{ backgroundImage: "url('/images/gpuhero2.png')", backgroundSize: "contain" }}
       >
         {/* Inner padding */}
-        <div className="px-6 py-16 lg:py-16">
+        <div className="px-6 py-16 lg:py-24">
           <div className="max-w-2xl lg:pl-6">
             <Eyebrow>MYCELIUM NODES</Eyebrow>
             <H3 as="h1" className="mt-4">