Added comment for CSS context

Author: jorozco94

src/PerformanceDashboard/WebVitals.svelte

@@ -88,10 +88,7 @@
 </main>
 
 <style>
- .invisible {
- display: none;
- }
-
+/* Below code applies only to web vitals rating color */
  .g, .n, .p {
  font-weight: bold;
  }
@@ -107,6 +104,7 @@
  .p {
  color: rgb(240, 38, 38);
  }
+/* Above code applies only to web vitals rating color */
 
  .web-vitals-parent-container {
  display: flex;