fix(web): memoize useNavigateTo to prevent infinite view transition loop

Wrapping the returned function in useCallback prevents a new reference
on every render, which was causing an infinite startViewTransition loop
on the initial signup page (fresh install with no admin).

Fixes #5626

web/src/hooks/useNavigateTo.ts

+import { useCallback } from "react";
 import { NavigateOptions, useNavigate } from "react-router-dom";
 
 const useNavigateTo = () => {
   const navigateTo = useNavigate();
 
-  const navigateToWithViewTransition = (to: string, options?: NavigateOptions) => {
+  const navigateToWithViewTransition = useCallback(
+    (to: string, options?: NavigateOptions) => {
       const doc = window.document as unknown as Document & { startViewTransition?: (callback: () => void) => void };
       if (!doc.startViewTransition) {
         navigateTo(to, options);
@@ -12,7 +14,9 @@ const useNavigateTo = () => {
           navigateTo(to, options);
         });
       }
-  };
+    },
+    [navigateTo],
+  );
 
   return navigateToWithViewTransition;
 };