FIX: Save WYSIWYG saving in source mode

Summary

See https://gitlab.indiscale.com/caosdb/customers/cfaed/management/-/issues/36. This fixes a bug whereby changes made in Source Mode of the WYSIWYG editor would not be saved.

Focus

Instead of listening to CKEditor's change:data event, we're now using the edit mode's state machine and its insert and update transitions to update the text areas that were replaced by the WYSIWYG editor.

Test Environment

Start any CaosDB server with the BUILD_MODULE_EXT_EDITMODE_WYSIWYG_TEXT build property enabled. Verify that changes made in a text property using the WYSIWYG editor are now saved correctly both within and outside Source Editing after clicking save. Also test this with records that have multiple text properties.

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assigned to @florian

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• d56a4e6a - DOC: Update Changelog

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• 76ca5438 - STY: Add missing semicolon

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requested review from @daniel

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• 76ca5438...8be8ead5 - 4 commits from branch dev
• 421257be - Merge branch 'dev' into f-wysiwyg-source-saving

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