What this PR does / why we need it:

Adds a new Rich Text Editor component to the design system.

This component is made with Tiptap npm packages.
Tiptap is a headless wrapper around ProseMirror – a toolkit for building rich text WYSIWYG editors, which is already in use at many well-known companies such as New York Times, The Guardian or Atlassian.

Cons: It does not support markdown as output, the output is html.
Pros:

• It does support Markdown shortcuts.
• Compatible with what dataverse already handles for rich content, that is html.
• Tiptap is headless, that means there is no styling provided so all styles were matched to what the rest of the SPA components look like.

Which issue(s) this PR closes:

• Closes Rich Text WYSIWYG Editor - Design System #525

Suggestions on how to test this:

Visual code inspection and Storybook story manual testing.
The component has 100% unit test coverage as well.

Does this PR introduce a user interface change? If mockups are available, please link/include them here: