Fix collab-editor crash with realtimecollaborationclient-editor-setdata-and-editor-data-set-are-forbidden-in-real-time-collaboration

[jimrandomh]

Hackily fix a crash in the CkEditor collaborative editor, which happens in a race-condition-like circumstance of some sort.

This works very hackily, by making the ReactCKEditorWrapper ignore downward-flowing changes to its data prop, if collaborative editing is enabled. This means that changes to the contents of the editor can't be initiated from outside the editor. It turns out that cases where collab-editing is enabled, and cases where we need to edit the editor contents from outside, don't overlap very much, so this should be ok.

┆Issue is synchronized with this Asana task by Unito

[jpaddison3]

Code looks fine, I'm deferring to you that we don't have any load bearing places where the data object is being set on a collab editor.

Please fix the lint error.