WebSocket support broken for Safari

[kflynn]

Safari causes the QuarkWebSocket not supported in this environment! to appear. It would appear that I botched that check...

[kflynn]

cf https://app.getsentry.com/datawireio/strobe/issues/141525746

[ark3]

For future reference...

Platform.prototype.isBrowser = function () {
    return (typeof(window) === "object") && (typeof(window.WebSocket) === "function");
};

It looks like Safari returns "object" for window.WebSocket's type.