wip, param label tweaks

src/apps/canvas/component/viewport.tsx

src/mol-app/component/parameter/boolean.tsx

src/mol-app/component/parameter/color.tsx

src/mol-app/component/parameter/multi-select.tsx

src/mol-app/component/parameter/number.tsx

src/mol-app/component/parameter/select.tsx

src/mol-app/component/parameter/text.tsx

src/mol-app/component/parameters.tsx

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

src/mol-util/param-definition.ts