Seasonpicks: Display firstname in table

src/routes/seasonpicks/+page.svelte

@@ -364,7 +364,7 @@
               class="ml-2 hidden text-nowrap text-center align-middle lg:block"
             >
               <!-- TODO: Setting to toggle between username or firstname display -->
-              {user.username}
+              {user.firstname}
             </div>
           </div>