fix(cli): version txt had a new line which it should not (#4233)

extensions/dicom-pdf/.webpack/webpack.prod.js

@@ -3,6 +3,8 @@ const { merge } = require('webpack-merge');
 const path = require('path');
 const webpackCommon = require('./../../../.webpack/webpack.base.js');
 const pkg = require('./../package.json');
+const MiniCssExtractPlugin = require('mini-css-extract-plugin');
+
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 
 const ROOT_DIR = path.join(__dirname, './..');
@@ -12,6 +14,8 @@ const ENTRY = {
   app: `${SRC_DIR}/index.tsx`,
 };
 
+const outputName = `ohif-${pkg.name.split('/').pop()}`;
+
 module.exports = (env, argv) => {
   const commonConfig = webpackCommon(env, argv, { SRC_DIR, ENTRY, DIST_DIR });
 
@@ -42,6 +46,10 @@ module.exports = (env, argv) => {
       new webpack.optimize.LimitChunkCountPlugin({
         maxChunks: 1,
       }),
+      new MiniCssExtractPlugin({
+        filename: `./dist/${outputName}.css`,
+        chunkFilename: `./dist/${outputName}.css`,
+      }),
       // new BundleAnalyzerPlugin(),
     ],
   });