Allow Annotation to use External Plugins - Spellchecker

SUMMARY

Currently, the CKEditor Annotation does not accept external plugins. We need to enable external plugins to configure the Spellchecker remote plugin the same way we do in LEOS

ACCEPTANCE CRITERIAS / GOALS

• Add a comment using Annotation. Make sure that in the phrase you insert, at least one word is misspelled so that you can see the underlined word => Accept the sugested word
• Add a suggestion using Annotation. Make sure to use the selector and suggest a correction for a misspelled word in LEOS => Accept the suggested word.
• Multiple Editors: Add a comment without saving it, then add another comment. Try to modify the content of both open editors and ensure that underlines do not interfere between editors. For example: If the second word in Editor 1 is misspelled, the underline should appear only in Editor 1 and not in Editor 2.