feat: update signin signup pages

Signed-off-by: Adithya Krishna <adithya@documenso.com>

apps/web/src/app/(teams)/t/[teamUrl]/error.tsx

@@ -34,7 +34,7 @@ export default function ErrorPage({ error }: ErrorProps) {
 
         <div className="mt-6 flex gap-x-2.5 gap-y-4 md:items-center">
           <Button
-            variant="ghost"
+            variant="secondary"
             className="w-32"
             onClick={() => {
               void router.back();