When a user's notification email is set for a group, we
should use that for pipeline emails

- Background migration for changing null values to false
- Set false as default value for private_profile DB column

Instead of setting the name of the namespace to the user's username,
set it to the user's name.

This is more consistent with how we name the routes:
The route-name of a namespace is the human name of the routable. In
the case of a user-namespace, this is the owner's name.

When we change a user's name (both on create and update), we now also
update the namespace-name to the user's name. This will make sure that
if we also correctly update all the nested routes.

The introduction of the in-memory cache for application settings had a
side effect of making it harder to invalidate changes when the settings
occur. We now bypass the cache because it's possible the admin enabled
the usage ping, and we don't want to annoy the user again if they
already set the value.

To avoid causing significant load on the system, we add an extra check
to ensure the user is an admin. and we don't want to annoy the user
again if they already set the value. This is a bit of hack, but the
alternative would be to put in a more complex cache invalidation
step. Since this call only gets called in the uncommon situation where
the user is an admin and the only user in the instance, this shouldn't
cause too much load on the system.

Disabled password authentication for the users registered using
omniauth-ultraauth strategy

Signed-off-by: Utkarsh Gupta <guptautkarsh2102@gmail.com>

Udpated user_edit_profile_spec with time preferences

Minor update form fields

Removed the conditions added to
Project.with_feature_available_for_user, and moved to the
IssuableFinder. Now, we ensure that, in the projects retrieved
in the Finder, the user has enough access for the feature.

Model.new.attributes now also returns encrypted attributes.

- Update PO file