Update binnenhaven url

Author: Erikvv

frontend/components/BinnenhavenEmbed.tsx

@@ -1,7 +1,7 @@
 import {FunctionComponent} from "react"
 
 export const BinnenhavenEmbed: FunctionComponent = () => (
-    <iframe src="https://app.resourcefully.nl/binnenhaven/?origin=holon" style={{
+    <iframe src="https://binnenhaven.resourcefully.nl/?origin=holon" style={{
         height: "calc(100vh - var(--header-height))",
         width: "100%",
     }}></iframe>