refactor: switch from pnpm to npm

- See: https://github.com/pnpm/pnpm/issues/6464

package.json

@@ -3,7 +3,6 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "preinstall": "npx only-allow pnpm",
     "build": "next build",
     "dev": "next dev",
     "postinstall": "prisma generate",
@@ -17,6 +16,7 @@
     "@paralleldrive/cuid2": "^2.2.1",
     "@prisma/client": "^4.14.0",
     "@t3-oss/env-nextjs": "^0.3.1",
+    "gray-matter": "^4.0.3",
     "next": "^13.4.2",
     "next-auth": "^4.22.1",
     "react": "18.2.0",
@@ -39,9 +39,13 @@
     "prettier-plugin-tailwindcss": "^0.2.8",
     "prisma": "^4.14.0",
     "tailwindcss": "^3.3.0",
-    "typescript": "^5.0.4"
+    "tsx": "^3.12.7",
+    "typescript": "^5.1.3"
   },
   "ct3aMetadata": {
     "initVersion": "7.14.1"
+  },
+  "prisma": {
+    "seed": "tsx prisma/seed.ts"
   }
 }