Add more statistical graph about gene catalog

Closes #67

See merge request !23

Add cards for global counts of annotation on the database

See merge request !22

Try to fix the issue for gene length graph

See merge request !21

Check if function exists in the db or remove it from payload

Closes #65

See merge request !20

mprove the way mapping between taxonomy names and id is done during IGC gene creation

Closes #66

See merge request !19

Resolve "Create backend service to perform request to external APIs"

Closes #63

See merge request !18