[D4T Frontend] Create design for map tooling (compass, layer selector, scale, etc.)

Context

Currently, the map is showng 2 tools : The compass and a layer selector (cf. image, on the top-left and top-right corners).

The design of these elements is very basic, coming directly fom what is implemented in the lib Coordo-TS. This can be changed by overriding default MapLibre CSS classes defined here for the compass, here for the scale.
The layer control has been created in the coordo-ts lib here, so we can customize it directly in coordo-ts lib or provide a way to customize the design via the api similarly as what has been done for the layer popup here

Objective

The goal of these ticket is to make the map look like this design :

As we can see, the design of the buttons corresponds to the other elements in the UI.