Hide account registration steps when user is authenticated

aleksis/apps/paweljong/frontend/components/event_registration/EventRegistrationForm.vue

@@ -611,14 +611,14 @@ import SecondaryActionButton from "aleksis.core/components/generic/buttons/Secon
       },
       steps() {
         return [
-          {
+          ... (this.$root.whoAmI.isAnonymous) ? [{
             name: "email",
             titleKey: "paweljong.event_registration.form.steps.email.title",
-          },
-          {
+          }] : [],
+          ... (this.$root.whoAmI.isAnonymous) ? [{
             name: "register",
             titleKey: "paweljong.event_registration.form.steps.register.title",
-          },
+          }] : [],
           ... (this.event?.contactInformationVisibleFields.length) ? [{
             name: "contact_details",
             titleKey: "paweljong.event_registration.form.steps.contact_details.title",