maint: update sapi schema

maint: minor fix on spalshscreen
refactor: reworked e2e checklist

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

feat: allow fsaverage grid toggle
feat: allow feature download
maint: surface face selection disabled

bugfix: add explore in kg for ebrains features
bugfix: url encoding of ebrains data features
chore: fix typo

feat: enabling ebrains features
fix: cache info/transform calls
feat: enable bbox search
feat: use nested expansion panel for features
expmt: show wireframes for voi
feat: allow expmt to be toggled on/off (in dev env only)

chore: log siibra version

feat: voi
chore: extracted ng layer ctl to its own module
fix: navigation state/route race condition
fix: use useViewer state on generalApplyState
fix: layer ctrl generalise layer id (prev only applied to pmap)
refactor: nehuba module
feat: enable voi query

fix: get ngId for jba29 in big brain
chore: remove priority in http interceptors (caching remains)
chore: update siibra-api schema
fix: show parc desc/url if present
fix: express search for region
feat: region feature categories
fix: mouse context region may be nullish
fix: plugin manifests
monkeypatch: some mapped big brain regions are not defined in
parcellations... see https://github.com/FZJ-INM1-BDA/siibra-python/issues/291
fix: template scale
wip: volumes of interest

refactor: access export_nehuba
fix: loading pmap