When disabled users where moved to their own endpoint we overlooked
search, so adding it back.
The search is done case-insensitive in uid and display name.
Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
This matches what was done in the calls and so fixes getting disabled
user list when there are several backends returning disabled users.
Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
(cherry picked from commit 85e7887e0764a9347bbbb10812459d95ccdfa6d4)
