Update Bookstack SAML settings
Enabled AUTH_AUTO_INITIATE=true to reduce amount of clicks needed to proceed to Bookstack and give a propper SSO experience. If user is not logged in elsewhere already, authentik's login page will still be displayed.
Edited SAML2_DISPLAY_NAME_ATTRIBUTES so it actually works. The previous "Name" entry is non-functional and does not parse. When this is the case, or the field is empty, usernames in Bookstack default to user's email address. Entries here need to be in line with Active Directory Federation Services' Role of Claims found here: https://learn.microsoft.com/en-us/windows-server/identity/ad-fs/technical-reference/the-role-of-claims. Additionally, this will use the user's authentik username rather than real/full name.
Enabled Group Sync by default for easier administration for sysadmins. SAML2_GROUP_ATTRIBUTE also needed to be in line with Active Directory Federation Services' Role of Claims
Signed-off-by: Avsynthe <102600593+Avsynthe@users.noreply.github.com>
Signed-off-by: Avsynthe <102600593+Avsynthe@users.noreply.github.com>
