Copy and paste not copying style on iOS

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Description
The copied text doesn't keep style (bold / italic / bullet point)

Recording
https://gifyu.com/image/bzM11

Sandbox
Behaviour was reproduced on https://www.slatejs.org/examples/richtext

Steps
To reproduce the behavior:

1. Go to Notes app on an Iphone.
2. Write text with bold or italic words.
3. Copy the text
4. Go to the Slate JS rich editor (https://www.slatejs.org/examples/richtext)
5. Paste the text

Expectation
I don't know exactly what's possible or not but an expected behaviour would be to keep the bold / italic and heading style like you would when you copy a text from the Notes app (iOS) to the Notion app (iOS) for example.

Environment

• Slate Version: 0.112.2
• Operating System: 17.7.1
• Browser: Safari

Context
I don't know if this is a "bug" or an expected behaviour but I didn't find any issue talking about this. So I created this one to help future user understand why this is not working if it's not a bug.