Plugin breaks RichText icons

[Filipos]

Hi this plugin break loading of icons in UU5.RichText. When you have turned on uuGle plugin and you try to open dialog with icons, RichText catch an error and you cannot add icon. RichText tries to load new icon library uuGds icons. Code throw an error, in line, where it tries to check if it is loadBook command.

n.includes("loadBook") && this.addEventListener("load"

You can simulate this bug in any BookKit.