fix: filter function not working in firefox

package.json

@@ -15,6 +15,7 @@
     "gatsby-source-filesystem": "^3.7.1",
     "gatsby-source-sanity": "^7.0.4",
     "gatsby-transformer-sharp": "^3.7.1",
+    "moment": "^2.29.1",
     "prop-types": "^15.7.2",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",