Typo in client/src/web-socket-manager.js

[item]

Dear,
it's just typo :

client/src/web-socket-manager.js

line 119 : "WebSocket: Coud not subscribe to " => "WebSocket: Could not subscribe to "
line 132 : "WebSocket: Coud not unsubscribe from " => "WebSocket: Could not unsubscribe from "

Regards