Use the file extension to render the content on EditorToolbar

The EditorToolbar component uses the value on the hash router to render the logo and the file name, and the EmbeddedEditor uses the file extension to render the proper editor, making it possible to open the editor for the current file and the EditorToolbar rendering the info of another editor.

The following URL will open a BPMN editor with the content of the DMN page:

https://kiegroup.github.io/kogito-online/?file=https://raw.githubusercontent.com/ljmotta/bpmn-dmn-examples/samples/sample.bpmn#/editor/dmn