feat: (experimental) .pointcloud drag and drop

revert: intents & compound features
fix: fsaverage ambiguous labels
fix: julichbrain 3.1 as default parcellation if nothing else is selected

feat: add queried concept
feat: added back btn to child feat (to compound feat)
bugfix: dismiss plot when new feature is selected

fix: gracefully handles when saneurl is not present

refactor: reworked mouseover module
refactor: (dedup) moved click interceptor from nehuba/threesurfer to their common parent
refactor: move mouseover & viewer wrapper from viewercmp to two child components

feat: allow experimental flag to be set at deploy time via env var
maint: update charts

maint: rc deploy on rancher

feat: preview compound feature point indices
maint: helm: update config, chart, and env
maint: make test less flaky
maint: minor fix Annotation layer
maint: more context when browser does not meet requirement

maint: remove jsc in ci/cd

fix: schema generation
chore: gha checkout/setupnode

fix: dropped nii may have multiple dim
fix: showing dropped nii filename
fix: fix user layer message
chore: plotly loading bar
chore: helm deploy scripts

fix: highlight selected region in hierarchy
feat: on region select, close hierarchy
feat: point dialog closes dialog
fix: best viewpoints

fix: p/n shortcut updates pip

fix: selecting new pt asmt/reg while min

feat: quick search show branches + leaves
feat: filter region runs on worker thread
chore: filter region on worker thread
chore: reorganise minimized info chip
chore: use destroy directive