Support Nextcloud 33 & Preview Table Migration Compatibility Request #1618
Description
With Nextcloud 33, the preview system has been split out of the oc_filecache table and moved into the new dedicated preview tables. This feature request is to ensure that the app fully supports the new schema, can read from the new preview tables as data is migrated away from oc_filecache, and operates without conflicts under the updated NC 33 preview architecture.