various tweaks and formating

src/apps/canvas/component/structure-representation.tsx

src/apps/canvas/structure-view.ts

.../representation/structure/visual/gaussian-surface-mesh.ts

src/mol-geo/representation/util.ts

src/mol-geo/util/marching-cubes/algorithm.ts

src/mol-gl/scene.ts

src/mol-gl/webgl/render-item.ts