feat: add missing types and resolvers

lib/new-admin/graphql/resolvers/notification.resolver.js

@@ -0,0 +1,15 @@
+const notifierQueries = require('../../../notifier/queries')
+
+const resolvers = {
+  Query: {
+    notifications: () => notifierQueries.getNotifications(),
+    hasUnreadNotifications: () => notifierQueries.hasUnreadNotifications(),
+    alerts: () => notifierQueries.getAlerts()
+  },
+  Mutation: {
+    toggleClearNotification: (...[, { id, read }]) => notifierQueries.setRead(id, read),
+    clearAllNotifications: () => notifierQueries.markAllAsRead()
+  }
+}
+
+module.exports = resolvers