MemberUser est authentifiable
Possibilité de poséder des livres.
Ajout style
Revert "Ajout style"

This reverts commit b5591e32a748c82fc20750b4467602e50c3a5900.
Correction bug d'authentification
Correction bug importjson
Revert "Correction bug importjson"

This reverts commit 412af1e74345b136abfae48d33e586ddc8f362d6.
update bdd
Merge