[Feature] column alignment (columns of 3) of segment detail view for voltage heatmap mirrors actual segment geometry

[wxkim]

Problem statement: what's wrong with it?
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Ideal situation: describe the solution you'd like.
A clear and concise description of what you want to happen.

Proposed solutions: describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[wxkim]

suggester: drake