stuff (#37)

Co-authored-by: Jan Klattenhoff <jan@kjan.email>
Reviewed-on: #37

assets/controllers/form_controller.js

@@ -12,6 +12,7 @@ export default class extends Controller {
     "ticketType",
     "foodType",
     "note",
+    "donation"
   ];
 
   stripe;
@@ -191,6 +192,7 @@ export default class extends Controller {
       lastname: this.lastnameTarget.value.trim(),
       email: this.emailTarget.value.trim(),
       phone: this.phoneTarget.value.trim(),
+      donation: Number(this.donationTarget.value) ?? null
     };
   }