[dashboard] Fix visual clipping when collapsing or moving panels, caused by #panels having `overflow: hidden`.
[dashboard] Fix visual clipping when collapsing or moving panels, caused by #panels having `overflow: hidden`.

madmatt/nodecg,nodecg/nodecg,IgorCandido/igrcnddStreamNotifications,madmatt/nodecg,nodecg/nodecg,IgorCandido/igrcnddStreamNotifications,nodecg/nodecg