Various fixes
Fixes tasks:
- AKG-Debug: JdD import Metadata #276
- AKG-Debug: JdD fiche information #294
- AKG-Debug: Carte import Metadata #295
- AKG-Debug: Export BIBtex #307 (partially)
- AKG-Debug: Fiche site dates début et fin: #308
/!\ Apply the new Hasura migration !
Edited by Christophe Beveraggi