fix(SW-690): use correct naming of search params in booking

Approved-by: Bianca Widstam
Approved-by: Linus Flood

components/TempDesignSystem/Link/index.tsx

@@ -51,9 +51,10 @@ export default function Link({
   const router = useRouter()
 
   const fullUrl = useMemo(() => {
-    const search =
-      keepSearchParams && searchParams.size ? `?${searchParams}` : ""
-    return `${href}${search}`
+    if (!keepSearchParams || !searchParams.size) return href
+
+    const delimiter = href.includes("?") ? "&" : "?"
+    return `${href}${delimiter}${searchParams}`
   }, [href, searchParams, keepSearchParams])
 
   // TODO: Remove this check (and hook) and only return <Link /> when current web is deleted