* ui: Add custom TOS support
Enable adding of a custom TOS in the Quay footer for on-premise installations via the optional `TERMS_OF_SERVICE` config flag.
If the flag is not defined, the TOS field will not be visible on Quay rendering. Also changes the behaviour of the discovery endpoint to include custom terms of service instead of pointing to Quay.io terms of service for all installations.
* Fix formatting errors
* Fix TOS page for Quay.io deployments
* Change TOS variable name to TERMS_OF_SERVICE_URL for better clarity
* Removed reference to Quay.io from the discovery endpoint description
* ui: Remove FEATURE_ from feature_set in base template (PROJQUAY-4582)
the variable `feature_set` has features with the `FEATURE_` prefix
removed. Fix the jinja check for this
* remove feature_ui_v2
Adds ACCOUNT_RECOVERY_MODE to allow Quay to run with some core
features disabled. When this is set, the instance should only be used
in order by existing users who hasn't linked their account to an
external login service, after database authentication has been
disabled.
