Updates to Intro + other activities

src/lib/libraries/decks/animate/cover-color-click.gif

src/lib/libraries/decks/game/game-change-color.gif

src/lib/libraries/decks/game/game-random-position.gif

src/lib/libraries/decks/game/game-reset-score.gif

src/lib/libraries/decks/game/popping-library.gif

src/lib/libraries/decks/index.jsx

src/lib/libraries/decks/intro/IntroSayHello-hat.gif

src/lib/libraries/decks/intro/IntroSayHello.gif

src/lib/libraries/decks/intro/add-glide.gif

src/lib/libraries/decks/intro/add-say.gif

src/lib/libraries/decks/intro/drag-glide.gif

src/lib/libraries/decks/intro/drag-say.gif

src/lib/libraries/decks/intro/hat-stack.gif

src/lib/libraries/decks/intro/intro-move-change-color.gif

src/lib/libraries/decks/intro/lib-getting-started.gif

src/lib/libraries/decks/intro/when-clicked.gif

src/lib/libraries/decks/make-music/cover-mic.gif

src/lib/libraries/decks/make-music/cover-mic.jpg

src/lib/libraries/decks/say/add-sprite.gif

src/lib/libraries/decks/say/another-say.gif