refactor(web): remove-unused-import

Author: tractorss

web/src/pages/Resolver/NavigationButtons/NextButton.tsx

@@ -2,7 +2,6 @@ import React from "react";
 import { Button } from "@kleros/ui-components-library";
 import { useLocation, useNavigate } from "react-router-dom";
 import { useNewDisputeContext } from "context/NewDisputeContext";
-import { isUndefined } from "utils/index";
 
 interface INextButton {
   nextRoute: string;