Merge branch 'develop' into video-refactor

package.json

src/components/cards/card.css

src/components/cards/cards.jsx

src/components/cards/icon--help.svg

src/components/cards/icon--next.svg

src/components/cards/icon--prev.svg

src/components/gui/gui.jsx

src/components/library-item/library-item.css

src/components/library-item/library-item.jsx

src/components/library/library.jsx

src/components/menu-bar/icon--help.svg

src/components/menu-bar/menu-bar.css

src/components/menu-bar/menu-bar.jsx

src/containers/cards.jsx

src/containers/gui.jsx

src/containers/tips-library.jsx

src/lib/blocks.js

src/lib/file-uploader.js

src/lib/libraries/decks/clicker/add-sound.gif

src/lib/libraries/decks/clicker/add-whenclicked.gif