Improving the graphical appearance of small countries and overseas territories in the map visualisations

There are several issues with the rendering of small countries and overseas territories: 

1) Gibraltar is not drawn on the default map. It is not included in the UK, it is simply fused with the UK.

2) Some countries like France and the Netherlands have overseas territories. When you use the auto-zoom, these overseas territories cause the zooming out to center in the middle of the ocean.

3) Some small countries that are often considered by private companies as separate identities (e.g. Bonaire, Guadeloupe, etc) are not separable from their mainland country.

Proposition: add these small territories to the country list so that the user can decide if to show them with their mainland or individually.