[Fixes #76141786] User can add notes to HDFS datasources from DataSource Index, again
[Fixes #76023696] Highlights only selected items in list after unchecking an item
[Finishes #75067480] When no items are selected, the multiple selection sidebar menu vanishes
[#76471758] Address some out-of-date integration specs
wip - site snapshot - api
more accurately determine the incremental count
site snapshot is an allowed module
get data to dashboard
display data on dashboard