ChannelDeck working prototype

components/DeckContent.tsx

@@ -0,0 +1,11 @@
+import "./DeckContent.css";
+
+import { cl, useDeck } from "./util";
+import DeckColumn from "./DeckColumn";
+
+export default function DeckContent() {
+    const deck = useDeck();
+    return <div className={cl("content")}>
+        {deck?.columns.map(column => <DeckColumn key={column.channelId} column={column} />)}
+    </div>;
+};