OO-1270: the first x must be pushed with the calculated size of the first column
OO-1274: refactor the download mechanism for the attachment in the project broker element
OO-1273: fix open/close of pages in CP, fix open CP course node with sub course nodes and only one page
Merge OpenOLAT 9.4 to OpenOLAT 10 with bde8ce63580da651d862269d50e2d554f2fae8d0
OO-1268: deduplicate all identities from all sources
Merge OpenOLAT 10 to OpenOLAT default branch with c2755498b67cd6096799ab4f2ef02aa6070076f7
no-jira: fix compiler errors