Make mobile number field optional

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

@@ -246,16 +246,12 @@ import SecondaryActionButton from "aleksis.core/components/generic/buttons/Secon
                       </div>
                     </v-col>
                     <v-col v-if="isFieldVisible('mobile_number')">
-                      <div aria-required="true">
-                        <v-text-field
-                          outlined
-                          v-model="data.person.mobileNumber"
-                          :label="$t('paweljong.event_registration.form.steps.contact_details.fields.mobile_number.label')"
-                          required
-                          :rules="$rules().required.build()"
-                          prepend-icon="mdi-phone-outline"
-                        ></v-text-field>
-                      </div>
+                      <v-text-field
+                        outlined
+                        v-model="data.person.mobileNumber"
+                        :label="$t('paweljong.event_registration.form.steps.contact_details.fields.mobile_number.label')"
+                        prepend-icon="mdi-phone-outline"
+                      ></v-text-field>
                     </v-col>
                   </v-row>
                   <v-row>