TASK: Introduce cke-overwrite styles

Sometimes we need to overwrite global ck editor styles. We can put them here.

packages/neos-ui-ckeditor5-bindings/src/ckEditorApi.js

@@ -3,6 +3,7 @@ import DecoupledEditor from '@ckeditor/ckeditor5-editor-decoupled/src/decouplede
 import {actions} from '@neos-project/neos-ui-redux-store';
 import {cleanupContentBeforeCommit} from './cleanupContentBeforeCommit'
 // FIXME import from @ckeditor/ckeditor5-engine/theme/placeholder.css instead! (Needs build setup configuration)
+import './cke-overwrites.vanilla-css';
 import './placeholder.vanilla-css';
 
 let currentEditor = null;

packages/neos-ui-ckeditor5-bindings/src/cke-overwrites.vanilla-css

@@ -0,0 +1,8 @@
+/**
+* Overwriting CKEditor 5 styles for the general rendering in the Neos UI
+*/
+
+/* hides powered-by logo */
+.ck-powered-by-balloon {
+    display: none;
+}