docs: make lang options consistent for all examples

Author: jyecusch

src/pages/websockets.mdx

@@ -230,7 +230,7 @@ socket.onDisconnect((ctx) async {
 
 <CodeGroup>
 
-```typescript
+```javascript
 import { websocket, kv } from '@nitric/sdk'
 
 // Initialize KV store for connections and a WebSocket