Make code cleaner in anatomogramExperimentTable.js

[ke4]

The long and complicated conditional branch could be replaced with a simple JSON file in the atlas-components/packages/atlas-anatomogram-experiment-table/src file.

https://github.com/ebi-gene-expression-group/atlas-components/blame/5e49a70e0ad77477d993ba79237d80ea43437943/packages/atlas-anatomogram-experiment-table/src/anatomogramExperimentTable.js#L92

Please move all the data out from this long conditional statement to a JSON file and use that one in this method.