Copy paste content from the doc doesn't work on Firefox 115

[virgile-dev]

Describe the bug
When I copy paste content from the doc it doesn't work on Firefox 115

To Reproduce
Simulate a Firefox 115, type in content in the doc, try and copy paste it inside the doc.

Misc

• Browser: Firefox 115
• I'm a sponsor and would appreciate if you could look into this sooner than later 💖

[YousefED]

If this is the error: #1286 (comment), then there likely was a regression here: https://github.com/TypeCellOS/BlockNote/pull/1160/files: we made copy sync, but do not initialize the markdown dependencies anymore.

[matthewlipski]

Fixed in #1300