In jst_server:

In jst_server:
* Fix let-bug in Resources.unref() caught by ES6 (another was fixed previously)

In ndcode_site:
* Make /_config/*.jst use ES6 superclass calls, fix failure to await the superclass calls, use (await import('@ndcode/jst_server')).default rather than the _jst_server builtin variable provided by jst (because npm now uses a flat node_modules structure, so there is no risk of loading a second copy of jst_server module)
* Update /my_account/index.html.jst to latest way, minor consistency changes in /my_account/sign_up/index.html.jst, change _lib/navbar.jst to remove flicker when sign in/out requires the page to be reloaded, i.e. when editing account details