lint: add space-before-blocks rule

.eslintrc.json

src/extensions/cellpack/curve.ts

src/extensions/cellpack/model.ts

src/extensions/cellpack/state.ts

src/extensions/cellpack/util.ts

...ol-plugin-ui/controls/line-graph/line-graph-component.tsx

src/mol-util/polyfill.ts

src/mol-util/zip/bin.ts

src/mol-util/zip/huffman.ts

src/mol-util/zip/util.ts