Refactor: TextEditor component to use Tiptap

[b1ink0]

Description

Refactored the TextEditor component to align with full feature and UI parity in the Frappe UI TextEditor component.

Relevant Technical Choices

Testing Instructions

Additional Information:

Screenshot/Screencast

TextEditor.Demo.mp4

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Checklist

• I have thoroughly tested this code to the best of my abilities.
• I have reviewed the code myself before requesting a review.
• This code is covered by unit tests to verify that it works as intended.
• The QA of this PR is done by a member of the QA team (to be checked by QA).

Fixes #