chore(deps): update dependency pagefind to v1.4.0

Author: renovate[bot]

website/package.json

@@ -40,7 +40,7 @@
     "eslint": "9.39.3",
     "eslint-config-next": "15.5.7",
     "eslint-config-prettier": "10.1.8",
-    "pagefind": "1.3.0",
+    "pagefind": "1.4.0",
     "postcss-import": "16.1.1",
     "postcss-lightningcss": "1.0.2",
     "tailwindcss": "3.4.19",