refactor: improve punctuation and grammar consistency across components

- Replaced em dashes with commas for better readability in descriptions
- Standardized punctuation in aria-labels (changed "—" to ",")
- Removed unnecessary em dashes in favor of commas or removed punctuation
- Fixed inconsistent spacing around punctuation marks
- Improved sentence flow in multiple component descriptions

src/pages/nodes/NodeBenefits.tsx

@@ -72,7 +72,7 @@ export function NodeBenefits() {
           <P className="mt-6" color="light">
             Hosting a node gives you private compute, contributes to the global
             Mycelium infrastructure, and unlocks ways to earn from real network
-            usage — all while keeping sovereignty and control.
+            usage, all while keeping sovereignty and control.
           </P>
         </motion.div>