Changing value of overlay setting (#15910)

webpack.config.js

@@ -397,7 +397,7 @@ if (USE_HOT_MODULE_RELOAD && !NO_DEV_SERVER) {
     hotOnly: true,
     port: SENTRY_WEBPACK_PROXY_PORT,
     stats: 'errors-only',
-    overlay: true,
+    overlay: false,
     watchOptions: {
       ignored: ['node_modules'],
     },