Network and Empty overlay view show pathways
If CellD file is saved with layers set invisible, then:
1. Minerva shows these layers and its names.
2. Empty and Network overlay view display pathways.
In case a CellD file is saved with layers invisible, don't display "double" name of the pathway; hide pathways in Empty/Network view.
https://pg-sandbox.uni.lu/minerva/index.xhtml?id=layerTest
file : [layerTest.xml](/uploads/dc3bd996067d10fb9cdfd147ed6df877/layerTest.xml)

issue