build(web): use pnpm from corepack (#935)

* feat(web): use pnpm packageManager on package.json

* build(web): add frozen-lockfile to Makefile

* build(docker): use the same node version as Docker image

* build(docker): enable corepack

* build(makefile): use --dir instead of cd for pnpm

web/package.json

@@ -77,5 +77,6 @@
     "tailwindcss": "^3.1.3",
     "typescript": "^4.7.3",
     "vite": "^4.2.1"
-  }
+  },
+  "packageManager": "pnpm@8.5.1"
 }