Attempt websocket reconnection on error code 1011 also (#167)

This error code is documented in RFC 6455, and it's what
hunchensocket (a websocket server for Common Lisp) uses to
signal websocket closure due to timeout.  I think this is
a small and reasonable change.

https://datatracker.ietf.org/doc/html/rfc6455

Search for 1011

Co-authored-by: gg <gg@nowhere>

Author: g-gundam

src/ws/ws.js

@@ -253,7 +253,7 @@ This extension adds support for WebSockets to htmx.  See /www/extensions/ws.md f
         socket.onclose = function(e) {
           // If socket should not be connected, stop further attempts to establish connection
           // If Abnormal Closure/Service Restart/Try Again Later, then set a timer to reconnect after a pause.
-          if (!maybeCloseWebSocketSource(socketElt) && [1006, 1012, 1013].indexOf(e.code) >= 0) {
+          if (!maybeCloseWebSocketSource(socketElt) && [1006, 1011, 1012, 1013].indexOf(e.code) >= 0) {
             var delay = getWebSocketReconnectDelay(wrapper.retryCount)
             setTimeout(function() {
               wrapper.retryCount += 1