Group additivity graphs fail to be drawn

[jonwzheng]

Example: https://rmg.mit.edu/database/thermo/groups/group/953/

Is supposed to draw a graph representation of the group:
group.draw('svg') but fails due to an issue with neato not found in path.
Strangely, a minimal example:

from rmgpy.molecule.group import Group

g = Group()
g.draw('svg')

does not return an error if called from the terminal Python environment...! I haven't been able to figure out why this error is occurring.

• Fails locally and on the dev/main sites.
• As a stopgap measure, Temporary fixes to website crash issues #292 disabled drawing these structures, but eventually we want to re-integrate this functionality.