Layout and Style Problems With Enhanced Rich Text Editor

[BayerPatrick]

Hey guys,
we want to use the enhanced-rich-text-editor in a small application of ours. However, we face issues with layout and style formatting after adding the corresponding dependency in our pom.xml. In order to make sure that the problem does not come from our application, we set up a minimalistic application according to Vaadin's starter project (https://vaadin.com/start/v14).
For better understanding of what we did and where the problem occurs, you can find the minimalistic application in the following repository. The problem is created in the branch "add-enhanced-rich-text-editor".

https://github.com/BayerPatrick/enhanced-rich-text-editor-testing.git

The attached pictures demonstrate the layout and style formatting problems.
Any help is appreciated.

Best regards,
Patrick