OO-990: fix a case where the SCORM package is not detected if the manifest files is at the root level and a single folder contains the SCOs

OO-1068: fix z-index and overflow issue in landing page administration, replace dropdown with a popover

OO-1000: fix mapping and view for the chat roster where the key of the groups were shown and not the name

OO-1068 fix different portrait image sizes, make it mid-sized, make expenditure of work field more flexible (ZAG review)

OO-984: update the number of comments in the details view, in create file of folder, no extension is html per default