chore: update project dependencies and configuration

- Removed Tailwind CSS tag from the artchat project metadata.
- Updated @nuxtjs/mdc package version from ^0.19.1 to 0.19.2 in package.json.
- Added migrations_table and migrations_dir properties to the D1 database configuration in wrangler.jsonc.

wrangler.jsonc

@@ -25,7 +25,9 @@
     "d1_databases": [
         {
             "binding": "DB",
-            "database_id": "d6e8c2ff-399a-4bec-b1b3-4bfe57d50ea8"
+            "database_id": "d6e8c2ff-399a-4bec-b1b3-4bfe57d50ea8",
+            "migrations_table": "_hub_migrations",
+            "migrations_dir": ".output/server/db/migrations/"
         }
     ],
     "kv_namespaces": [