Issue/2174 - Show items with no GUI tag in asset in the GUI (#3133)

* Always add GUI properties, even if tag is not in the asset

To make objects wihtout GUI tag be included in the UI

* Hide the hover circle, to clean up scene menu list a little

* set root node gui hidden property to true

* Properly add the gui properties for all scene graph nodes (even root)

* Update GUI hash

data/assets/modules/skybrowser/hover_circle.asset

@@ -23,7 +23,8 @@ local circle = {
     Description = [[A circular marker that shows the position on the night sky
       of the object hovered in the sky browser UI. The circle will hide/show up
       dynamically, depending on the interaction with the items in the UI]],
-    Path = "/SkyBrowser"
+    Path = "/SkyBrowser",
+    Hidden = true
   }
 }
 

data/assets/util/webgui.asset

@@ -4,7 +4,7 @@ local guiCustomization = asset.require("customization/gui")
 
 
 -- Select which commit hashes to use for the frontend and backend
-local frontendHash = "65c0238b8ba931b958cf3cada2ab226c8f1c9880"
+local frontendHash = "e1ebc90f79f10bafe46aea72eb91fdf0e86876ad"
 
 local frontend = asset.resource({
   Identifier = "WebGuiFrontend",