Lots of comments. Also improved some variable names.

src/display/components/collapsible.tsx

src/display/components/fancyscrollbar.tsx

src/display/components/nodefilter/filtermenu.tsx

src/display/components/nodefilter/label.css

src/display/components/nodefilter/label.tsx

src/display/components/nodeinfo/mediaarea.tsx

src/display/components/nodeinfo/neighbors.tsx

src/display/components/nodeinfo/nodeinfobar.tsx

src/display/components/nodeinfo/references.tsx

src/display/components/nodeinfo/titlearea.tsx

src/display/display.tsx

src/display/graph.ts

src/display/renderer.tsx