Update Playground component to show code editor by default

- Changed the initial state of `showCodeEditor` in `Playground.tsx` from `false` to `true`, ensuring the code editor is visible by default. This enhancement aims to improve user experience by providing immediate access to the code editor.

packages/docs/src/docs-components/Playground.tsx

@@ -44,7 +44,7 @@ const PlayGround: FC<PlaygroundProps> = ({
 }) => {
 
     const resizeRef = useRef<HTMLDivElement>(null);
-    const [showCodeEditor, setShowCodeEditor] = useState(false);
+    const [showCodeEditor, setShowCodeEditor] = useState(true);
 
     return (
         <EditorProvider initialCode={code} >