Init login funnel

Author: Llorenç

src/frontend/src/flows/authorize/postMessageInterface.ts

@@ -1,6 +1,7 @@
 // Types and functions related to the window post message interface used by
 // applications that want to authenticate the user using Internet Identity
 import { analytics } from "$src/utils/analytics/analytics";
+import { loginFunnel } from "$src/utils/analytics/loginFunnel";
 import { type SignedDelegation as FrontendSignedDelegation } from "@dfinity/identity";
 import { Principal } from "@dfinity/principal";
 import { z } from "zod";
@@ -130,6 +131,8 @@ export async function authenticationProtocol({
   analytics.event("authorize-client-request-valid", {
     origin: requestOrigin,
   });
+  // TODO: Add origin to login funnel
+  loginFunnel.init();
 
   const authContext = {
     authRequest: requestResult.request,