If the optional user entity ref is available the link for a member will
point to the backstage catalog page for the user. Otherwise it will
default to the current "https://github.com/${displayName}".
Signed-off-by: Niklas Aronsson <niklasar@axis.com>
A new field has been added to the members table. When a user has
requested to be added to a project the "identityApi" is used to get the
entity ref of the user.
Signed-off-by: Niklas Aronsson <niklasar@axis.com>