fix(Webpack): Rollback Webpack 4 and Karma 4 temporarily because bad performances for unit test
fix(Webpack): Rollback Webpack 4 and Karma 4 temporarily because bad performances for unit test

DSI-HUG/dejajs-components,DSI-HUG/dejajs-components,DSI-HUG/dejajs-components,DSI-HUG/dejajs-components