feat: (experimental) .pointcloud drag and drop

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

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

maint: remove jsc in ci/cd

maint: minor fix on spalshscreen
refactor: reworked e2e checklist

maint: updated repo README.md
maint: typo, update k8s configmap value, cleaned up env var
maint: plugin API documentation
fix: plugin API generation
maint: use stable as default siibra-api endpoint
maint: add git repo to mkdocs

fix: schema generation
chore: gha checkout/setupnode

chore: api doc

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

chore: remove unused connectivity display fn
fix: add feedback when error fetching feature