fix up browser import

Author: KodrAus

browser.js

@@ -1,5 +1,5 @@
 "use strict";
 
-const Logger = (await import('./seq_logger')).DefineLogger(Blob, fetch, typeof AbortController !== 'undefined' ? AbortController : await import('abort-controller'));
+const Logger = (await import('./seq_logger.js')).DefineLogger(Blob, fetch, typeof AbortController !== 'undefined' ? AbortController : await import('abort-controller'));
 
 export { Logger };