refactor: use baselayer/nglayer to create nehuba config layers
refactor: simplify nglayer obs
feat: restore aux mesh control
chore: remove unused vars in nehubaViewer
refactor: improve viewer_ctx event performance (rather than
emitting all latest events, only emit the relevant event)
bugfix: nehuba.fromRootStore get volume filter when space etc are undefined

refactor: refactor parcellation version traverse
feat: region.directive navigate to
refactor: remove unused interface & functions
refactor: complete remove old store
refactor: nehubaViewer ready state refactored
feat: added region chip

wip: migrate/remove src/service/

chore: removed unnessary refresh UI

chore: added saneurls
chore: improv build

WIP fixing tests

chore: typing for switchmap waitfor

feat: allow toggling of octant removal when landmarks shown

chore: update release notes

chore: refactor nehuba navigation service

bugfix: e2e non atlas volumes
chore: misc fixes

feat: interactiveViewer.viewerHandle.mouseOverNehubaUI now allows ...
... customLandmarks enter/leave state to be monitored

* feat: use region related components inherit randomized colour
bugfix: Explore btn text colour
chore: reworked threshold for triggering darkmode

* feat: reworked contributor name display

* chore: use short name for version selector

* chore: update help page info

chore: added test to prevent regression

bugfix: mouseOver directive not capturing scanning region properly
feat: reworked region menu component
feat: introduced landmark component
chore: reworked spatial search endpoint