Moved all the logic out of the template into a separate endpoint. This
makes it easy to extend to also support images from different sources
like LDAP/SAML/OIDC. Session-based caching is hard to do, so to allow
time-based caching in the browser, the url needs to be unique for every
user by using a query parameter.
Replaced the default/fallback user image with a new one. It is based on
the old one, but does not need css to be visible. And removed said css.
Gravatar has now its own setting named `gravatar_enabled`, which is
disabled by default.
When enabled, forbids the creation of a domain if it exists as a record in one of its parent domains (administrators and operators are not limited though).
If the 'otp_force' and 'otp_field_enabled' basic settings are both enabled, automatically enable 2FA for the user after login or signup, if needed, by setting a new OTP secret. Redirect the user to a welcome page for scanning the QR code.
Also show the secret key in ASCII form on the user profile page for easier copying into other applications.
The new setting 'verify_ssl_connections' tells the requests library to
verify secured outgoing HTTP connections.
Usually verifying is desired and helps to reveal configuration
problems. It also disables an ugly warning when HTTPS connections
are made without verification.
- Add session handler on other blueprint's before request
- Adjustment in using jTimeout to close warning popup on
other tabs when we extend the session
