Use hra-3d-cell-generation API to build cell type visualization for one organ initially

[andreasbueckle]

Make a 3D visualization of cells inside an anatomical structure

Needs to use: https://github.com/cns-iu/hra-3d-cell-generation-api

Use SPARQL query at https://grlc.io/api-git/hubmapconsortium/ccf-grlc/subdir/hra-pop/#/default/get_cell_types_in_anatomical_structurescts_per_as

• Synergies with Implement initial bar graph visualization for one anatomical structure #230

⚠️ Update 5/8/24 ⚠️

• Place in separate scene?

• Darken background/skybox color -> dark mode for viewing cells, e.g. colors in
  

• Focus on heart M and F:
  

[andreasbueckle]

Form @u-p-design
Allow user to turn HRApop on and off via keyboard. Keep an element of the keyboards across all scales. Need a common task keyboard.