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

diff --git a/jst_server b/jst_server
index 386b5f7..17937b4 160000 (submodule)
--- a/jst_server
+++ b/jst_server
@@ -1 +1 @@
-Subproject commit 386b5f73d3c955ea21e177f738357078c295ff21
+Subproject commit 17937b4fbf0f6fa2182de3f6539b99d897efa45c

diff --git a/ndcode_site b/ndcode_site
index 47ad54b..a4adebc 160000 (submodule)
--- a/ndcode_site
+++ b/ndcode_site
@@ -1 +1 @@
-Subproject commit 47ad54b04fe62459a0c6789aaa4f328ef0f421d7
+Subproject commit a4adebcf758195fc268cc4f47a5d914abfab21a7