Simple pop-up

[NicolasGrosjean]

Implement a pop-up with some data for #15, waiting the @damiendevienne images.

[NicolasGrosjean]

With the icons, the pop-up is better.

I have 2 issues and I don't know how to solve them :

• The share button to open the application on it
• The CSS links between minors and unaccompagnied/children (we will have the same issue for Encart des thématiques clés #9 )

[regazzoj]

I couldn't figure out how to achieve your second issue. I was thinking of SVG and just draw a line/path, but didn't have time to do so.

For the first issue, I need to think about it, but I am thinking of just give the state in the URL and remake the state according to URL parameters. I don't know if we need a lot of things to be shared.
I know it doesn't really fit well, but it could be a workaround for a first version.

I let you merge your PR, thanks for you work (:

I will work on some refacto on my side and trying to implement SVG to draw connection between elements.