fix status event_notification enum adding 'sending'

server/migrations/20210308194339-sending_notification_status.js

@@ -0,0 +1,10 @@
+'use strict'
+
+module.exports = {
+  up: (queryInterface, Sequelize) => {
+    return queryInterface.sequelize.query('ALTER TYPE "enum_event_notifications_status" ADD VALUE \'sending\'')
+  },
+
+  down: (queryInterface, Sequelize) => {
+  }
+}