Mention nodes not wrapped with formatting decorators like bold/italics/underline

[deyayan]

Bold, Italics, Underline decorators doesn't wrap up mention nodes.

For ex: Selecting a content with text and mention and then formatting to bold looks something like the following

The generated JSON is as follows:
[{"type":"p","children":[{"text":"hello ","bold":true},{"type":"mention","children":[{"text":""}],"value":"node1"},{"text":""}]}]

Steps

Plate's demo on its website also has the same issue.

Expectation

User should be able to have consistent formatting, wherever and however he/she requires.

Environment

• slate: 0.75.0
• slate-react: 0.75.0
• browser: Firefox