Don't show NUXs to brand new users (#8362)

* Ensure verification nux is only shown to older users

* Update comment

src/components/dialogs/nuxs/utils.ts

@@ -0,0 +1,18 @@
+const ONE_DAY = 1000 * 60 * 60 * 24
+
+export function isDaysOld(days: number, createdAt?: string) {
+  /*
+   * Should never happen because we gate NUXs to only accounts with a valid
+   * profile and a `createdAt` (see `nuxs/index.tsx`). But if it ever did, the
+   * account is either old enough to be pre-onboarding, or some failure happened
+   * during account creation. Fail closed. - esb
+   */
+  if (!createdAt) return false
+
+  const now = Date.now()
+  const then = new Date(createdAt).getTime()
+  const isOldEnough = then + ONE_DAY * days < now
+
+  if (isOldEnough) return true
+  return false
+}