Persist one browser user agent for Axios and WebSockets

lib/tradovate-class.ts

@@ -1,6 +1,6 @@
 // Create a class with a constructor that takes a username and password and sets the credentials
 
-import axios from 'axios';
+import axios from './http-client';
 import type { AccountItem, AuthLoginResponse, Contract } from './tradovate-helpers';
 import { computeSec, randomUUIDV4 } from './tradovate-helpers';
 import { currentTradeDateCT } from './trading-logic';