feat: update UI styling and add new overview sections

- Changed DarkCard border radius from rounded-3xl to rounded-xl for more subtle styling
- Added ComputeOverview section to compute page
- Replaced StackSectionLight with new StackSectionDark component featuring enhanced aurora effects and improved visual hierarchy

src/pages/compute/ComputePage.tsx

@@ -6,6 +6,7 @@ import { ComputeUseCases } from './ComputeUseCases'
 import { CallToAction } from './CallToAction'
 import { ComputeCapabilities } from './ComputeCapabilities'
 import { ComputeDesign } from './ComputeDesign'
+import { ComputeOverview } from './ComputeOverview'
 
 
 export default function ComputePage() {
@@ -35,6 +36,10 @@ export default function ComputePage() {
         <ComputeUseCases />
       </AnimatedSection>
 
+      <AnimatedSection>
+        <ComputeOverview />
+      </AnimatedSection>
+
       <AnimatedSection>
         <CallToAction />
       </AnimatedSection>