cleaning up code, changed names to certain files

src/mol-geo/geometry/direct-volume/direct-volume.ts

src/mol-plugin/skin/base/components/line-graph.scss

src/mol-plugin/skin/base/ui.scss

src/mol-plugin/ui/controls/LineGraph/LineGraphComponent.tsx

src/mol-plugin/ui/controls/LineGraph/PointComponent.tsx

src/mol-plugin/ui/controls/parameters.tsx