Added justify-content: center to .topics-actions (#81)

Author: moozzi

app/assets/stylesheets/components/topics.css

@@ -766,6 +766,7 @@ a.topic-icon {
 
 .topics-actions {
   display: flex;
+  justify-content: center;
   gap: var(--spacing-3);
   padding: var(--spacing-3) var(--spacing-4);
   align-items: center;