feat: loading and error pages

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
+    "dev": "next dev --turbo",
     "build": "next build",
     "start": "next start",
     "lint": "next lint",
@@ -34,7 +34,7 @@
     "lexorank": "^1.0.5",
     "libphonenumber-js": "^1.12.10",
     "mantine-react-table": "^2.0.0-beta.9",
-    "next": "15.3.3",
+    "next": "15.4.7",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "react-imask": "^7.6.1",