Manage group nodes (#2455)

* wip group manage

* prototyping ui

* tweaks

* wip

* wip

* more wip

* fixes
add deletion

* Fix tests

* fixes

* Remove test code

* typo

* fix crash when link is invalid

web/jsconfig.json

@@ -3,7 +3,8 @@
 		"baseUrl": ".",
 		"paths": {
 			"/*": ["./*"]
-		}
+		},
+		"lib": ["DOM", "ES2022"]
 	},
 	"include": ["."]
 }