Map loading spinner creates a problem while zooming

The spinner component prevents zooming in/out the map when mouse is right over it.

It zooms the page instead, causing trouble to the user who do not understand why that's happening.

Possible solutions:

• Replace the spinner by a progress bar under the map (for global coherence as it's already used for search)
• Find a way to make the spinner "transparent" for the zoom
• Put the spinner on a different part of the page