feat: add dark theme support and update homepage content

- Integrated next-themes for dark mode theming with default dark theme
- Added new UI components (GridBlink, Spotlight) and enhanced world map with cyan glow effects
- Updated homepage messaging to emphasize Mycelium as a living network with new audience imagery

src/pages/home/CallToAction.tsx

@@ -14,17 +14,20 @@ export function CallToAction() {
       <Container className="relative">
         <div className="mx-auto max-w-2xl text-center ">
           <h2 className="text-3xl lg:text-4xl font-medium tracking-tight text-white sm:text-4xl">
-            Use the Mycelium Stack Your Way
+             A Living Network
+
           </h2>
           <p className="mt-6 text-lg text-gray-300">
-            Run workloads, connect environments, host nodes, and build agentic systems, all on one sovereign, self-healing network. 
+            Mycelium isn’t a platform.
+It’s the soil where a new internet grows — open, resilient, and alive.
+ 
           </p>
           <p className="mt-4 text-lg text-gray-300">
-            Start wherever you are. Scale however you choose.
+            The self-sovereign network powering the next internet.
           </p>
           <div className="mt-10 flex flex-wrap justify-center gap-x-6 gap-y-4">
             <Button to="/cloud" variant="solid" color="cyan">
-              Get Started
+              Join Mycelium
             </Button>
             <Button
               to="https://threefold.info/mycelium_network/docs/"
@@ -33,7 +36,7 @@ export function CallToAction() {
               variant="outline"
               color="white"
             >
-              Explore Docs
+             Join Early Cloud Access
             </Button>
           </div>
         </div>