Can't navigate to new section while smell sources are loading

[kintopp]

If you goto https://explorer.odeuropa.eu/smell-sources it takes some time for all the sources to load. During these several seconds, it's not possible to click on Odour Carriers or Fragrant Spaces in the menu. Unfortunately, this happens again, if you do go somewhere else, then goto Sources, and then try to go somewhere else again. i.e. each time you go to sources, it blocks you from going to carriers or spaces.

[rtroncy]

This page needs to be completely re-designed to follow-up on the decisions we took in the last plenary meetings. In particular, @Ileemans has proposed a new top level organization of the smells sources into 10 categories: beings, body, flora, nature, element, fragrance, food, artefact, abstraction, practice. See also #49 and this slide being edited during the Ljubljana meeting.