fix(SW-2659): pass input to userTrackingInfo since lang needs to be passed from client

apps/scandic-web/server/routers/user/input.ts

@@ -5,6 +5,9 @@ import { Lang } from "@/constants/languages"
 import { signUpSchema } from "@/components/Forms/Signup/schema"
 
 // Query
+export const userTrackingInput = z.object({
+  lang: z.nativeEnum(Lang).optional(),
+})
 export const staysInput = z
   .object({
     cursor: z