All the rest of the linting

src/components/blocks.jsx

src/components/costume-canvas.jsx

src/components/library-item.jsx

src/components/library.jsx

src/components/modal.jsx

src/components/sprite-selector.jsx

src/components/stage.jsx

src/containers/backdrop-library.jsx

src/containers/blocks.jsx

src/containers/costume-library.jsx

src/containers/green-flag.jsx

src/containers/gui.jsx

src/containers/sprite-library.jsx

src/containers/sprite-selector.jsx

src/containers/stage.jsx

src/containers/stop-all.jsx

src/index.jsx

src/lib/log.js

src/lib/media-library.js

src/lib/vm-manager.js