Use Sec-WebSocket-Protocol instead of query string to pass WebSocket token

Inspired by https://github.com/kubevirt/kubevirt/issues/1242

app/javascript/flavours/glitch/util/stream.js

@@ -71,11 +71,7 @@ export function connectStream(path, pollingRefresh = null, callbacks = () => ({
 export default function getStream(streamingAPIBaseURL, accessToken, stream, { connected, received, disconnected, reconnected }) {
   const params = [ `stream=${stream}` ];
 
-  if (accessToken !== null) {
+  const ws = new WebSocketClient(`${streamingAPIBaseURL}/api/v1/streaming/?${params.join('&')}`, accessToken);
-    params.push(`access_token=${accessToken}`);
-  }
-
-  const ws = new WebSocketClient(`${streamingAPIBaseURL}/api/v1/streaming/?${params.join('&')}`);
 
   ws.onopen      = connected;
   ws.onmessage   = e => received(JSON.parse(e.data));