fix: umami analytics date attribute (#477)

Yuto Nagata

2023-09-16 422ba5c36586c7ebc31141da8bb539b4157aa01a

 .prettierrc

@@ -2,5 +2,6 @@
  "printWidth": 100,
  "quoteProps": "as-needed",
  "trailingComma": "all",
  "tabWidth": 2
  "tabWidth": 2,
  "semi": false
}