Restoring plugins options for webpack config

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

webpack.renderer.ts

@@ -20,7 +20,6 @@ export function webpackExtensionsApi(): webpack.Configuration {
   };
   config.output.libraryTarget = "commonjs2"
   delete config.devtool;
-  delete config.plugins;
   return config;
 }