Electronic structure in dropdown
If a material has no calculations with results for the electronic structure category, the category does (correctly) not show up in the overview, but it appears in the category selection dropdown (in the detail pages).
In this case it should not be available in the dropdown - same behavior as thermal properties.
Test example
http://enc-staging-nomad.esc.rzg.mpg.de/gui/#/material/742739/electronicstruct