refactor: improve punctuation consistency and add spacing in multiple components

- Replaced em dashes with commas in AgentPro descriptions for "Local Execution" and "Private Data Access"
- Changed em dash to comma in CloudPros description for better readability
- Removed em dash in NetworkUsecases "Service-to-Service Networking" description
- Added bottom spacing elements to NodeBenefits with border styling and padding

src/pages/nodes/NodeBenefits.tsx

@@ -108,8 +108,10 @@ export function NodeBenefits() {
           ))}
         </motion.ul>
       </div>
-
+{/* Bottom spacing line */}
       <div className="w-full border-b border-gray-800 bg-[#121212]" />
+      <div className="max-w-7xl mx-auto py-6 border border-t-0 border-b-0 border-gray-800" />
     </section>
+    
   );
 }