added seeder script

scripts/seed.js

@@ -0,0 +1,21 @@
+/* eslint-disable no-console */
+require('dotenv').config();
+const { client: prismaClient } = require('@umami/prisma-client');
+
+const { seedAdminUser } = require('./seeds/admin-user');
+
+async function main() {
+  // seed admin user
+  await seedAdminUser();
+
+  console.log('Seeding complete.');
+}
+
+main()
+  .catch(e => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prismaClient.$disconnect();
+  });