fix file loader public path (#11206)

webpack.config.js

@@ -85,7 +85,7 @@ const config = (module.exports = {
       },
       {
         test: /\.(eot|woff2?|ttf|svg|png)$/,
-        use: [{ loader: "file-loader", options: { publicPath: "" } }],
+        use: [{ loader: "file-loader", options: { publicPath: "./" } }],
       },
       {
         test: /\.css$/,