Enable EmbeddedEditor to support an update on the StateControl instance

The EmbeddedEditor do not properly support opening multiple files without a complete re-render. Opening files without a re-render will not create a new instance of the StateControl, making it shared accross the files.

When a file is opened (a update on the file content) a new instance of the StateControl should be initialized. In order to it properly it's necessary to update the editor reference used on the channels (Online, Desktop, Chrome Extension).