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

maint: added text Centroid
feat: allow fsaverage grid to be toggled

bugfix: show desc readmore uncollapse button
bugfix: region smart chip also fades unless on hover
refactor: bottom menu (atlas selector)
maint: re position of x/42 features
maint: changed reset btn (flat -> stroked)
bugfix: exmpt btn
bugfix: catch when voi is undefined
maint: remove unused css

feat: align jumbo chip icon to chip, not to line
feat: introduce opacity to jumbo chip

fix: remove exmpt lbl on voi

feat: rgb colormap control
fix: touch control not working

maint: added css to vanilla.html

minor refactor

TODO:

- annotation
- real space not yet available
- nehuba status panel busted
- check swc works

generally working with the following caveats:

- fsaverage busted
- annotation not yet working
- colin27 busted
- real space interpolation values not yet available
- (as a result of above) nehuba status panel not yet working

ALSO TO CHECK:
- swc

maint: toggle parc visib

... persistence)
maint: added markdown descriptor for slice view quick starter guide
fix: fixed neuron messing, passing message to api service if not found
fix: api method typos

maint: external precomputed layer now fetches and sets transform