Resize my geometric shape according to the window size with three.js

Question

I am currently trying to make my geometric shape which is an "IcosahedronGeometry" resize according to the size of the user's window in Nuxt.js (Vue.js).

For the moment, I manage to make the camera follow the size of the window but the size of my shape is still huge and doesn't resize.

For the moment I have tried this: cube.scale.set( window.innerWidth, window.innerHeight, 1 );

But it doesn't work as expected, the object flattens...

    function onWindowResize() {
      renderer.setSize(window.innerWidth, window.innerHeight);
      cube.scale.set( window.innerWidth, window.innerHeight, 1 );

      camera.aspect = window.innerWidth / window.innerHeight;
      camera.updateProjectionMatrix();
    }