Patch the call of the functions located in the views.images module in the download_target_folder() function

This will ensure that the stored password is compliant with the
requirement set in the configuration file. If not (the length of the
salt or the number of iterations is not correct, the password is
rehashed and updated in the database).

This update should not impact the login process for old users.

When no marks are available for a donor, the blue question mark is used
instead of using the "ok" green tick.

This will allows the user to call the correct redis database based upon
a string name in a dict, and not a variable perse. The definition of the
databases is easier this way, and the call of the correct database is
clearer in code.

This will renew the save of the TOTP server side for the username/IP tuple.

This will not change the behavior of the verify() function but is easier
to read.