Update webpack-issues.mdx

docs/troubleshooting/webpack-issues.mdx

@@ -216,7 +216,7 @@ module.exports = defineConfig({
       os: false, // os-browserify can be polyfilled here if needed
       https: false, // https-browserify can be polyfilled here if needed
       http: false, // stream-http can be polyfilled here if needed
-      url: false, // url can be polyfilled here if needed
+      url: "url", // url is needed if using `signer.provider.send` method for signing from ethers.js
       zlib: false, // browserify-zlib can be polyfilled here if needed
     };
     config.plugins.push(new ProvidePlugin({ Buffer: ["buffer", "Buffer"] }));