title: bit-src didn't show the style of react bootstrap
body: <p>I've made a component (button) with CRA and react-bootstrap, 
  and I exported it into bit-src, 
  the component has rendered without its styling,
  however I've tried to push it with pure CSS and the component has rendered with its styling, 
  so is bootstrap didn't fit with bit-src
  or I've missed something ? </p>