Refactor into library of components

[LaChope]

Right now, the maintenance planner is not flexible enough, it is too specialized to the CSAT project. All components should be exportable and logic should me moved away from it to have more control over it.

A/C:

• Every component must be:
  • Exportable
  • Customizable
  • Without logic (or as little as possible)
• Storybook should be updated accordingly to be able to test / play with all the components and have suitable documentation to be able to easily import the different components in different projects.

Any idea/feedback is welcome @blcham @PluharVit :)