Grid and Reboot should be in core

[youf-olivier]

In order to use grid and reset, we have to import them from all :

import '@axa-fr/react-toolkit-all/dist/style/bootstrap/grid.css'; import '@axa-fr/react-toolkit-all/dist/style/bootstrap/reboot.css';

But if we want to using only few packages, we don't want to install the 'all' package.

[arnaudforaison]

Agree with you. A mono npm module with tree shaking is the key. What do you think ?

[arnaudforaison]

Must be done as the same time of #803