App update

Submodule web/app f6bfad9..f7ddb9c:
  > Check and update the hash of the password for users while login
  > Use the correct variables for the hashing process

app @ f7ddb9cb

-Subproject commit f6bfad927881432ed5d38664caf102334f5bbeb2
+Subproject commit f7ddb9cbbf979110a582bfd125f31e95d331aace