Revert "Unify workspace dropdowns; Update layouts (#458)"

This reverts commit 4bc8448a1d.

packages/supabase/src/hooks/use-sign-up-with-email-password.ts

@@ -49,7 +49,7 @@ export function useSignUpWithEmailAndPassword() {
         throw new WeakPasswordError(errorObj.reasons ?? []);
       }
 
-      throw response.error;
+      throw response.error.message;
     }
 
     const user = response.data?.user;