[stable10] Add index to oc_cards to assist with searching large numbe…#28042

PVince81 merged 1 commit intostable10owncloud/core:stable10from

stable10-b627f633a0bc5e5588c374a3159a06c49190e02downcloud/core:stable10-b627f633a0bc5e5588c374a3159a06c49190e02dCopy head branch name to clipboard