Update event dashboard heading

Author: daveearley

frontend/src/components/routes/events/Dashboard/Dashboard.module.scss

@@ -11,8 +11,8 @@
   align-items: flex-start;
   justify-content: space-between;
   gap: 2rem;
-  margin-bottom: 2.5rem;
-  margin-top: 2.5rem;
+  margin-bottom: 1.2rem;
+  margin-top: 1.2rem;
 
   @include mixins.respond-below(md) {
     flex-direction: column;