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/gpu/GpuCapabilities.tsx

@@ -17,7 +17,7 @@ const gpuCapabilities = [
     eyebrow: "CAPABILITIES",
     title: "What You Can Run on Mycelium Cloud",
     description:
-      "GPU acceleration for inference, training, rendering, and agent workloads — on sovereign hardware.",
+      "GPU acceleration for inference, training, rendering, and agent workload on sovereign hardware.",
   },
   {
     name: "AI / ML Inference & Training",