Store user settings/data on the server and multi user support (#2160)

* wip per user data

* Rename, hide menu

* better error
rework default user

* store pretty

* Add userdata endpoints
Change nodetemplates to userdata

* add multi user message

* make normal arg

* Fix tests

* Ignore user dir

* user tests

* Changed to default to browser storage and add server-storage arg

* fix crash on empty templates

* fix settings added before load

* ignore parse errors

web/style.css

@@ -121,6 +121,7 @@ body {
 	width: 100%;
 }
 
+.comfy-btn,
 .comfy-menu > button,
 .comfy-menu-btns button,
 .comfy-menu .comfy-list button,
@@ -133,6 +134,7 @@ body {
 	margin-top: 2px;
 }
 
+.comfy-btn:hover:not(:disabled),
 .comfy-menu > button:hover,
 .comfy-menu-btns button:hover,
 .comfy-menu .comfy-list button:hover,