Image alignment not working in latest BlockNote update

[Harishri2002]

Describe the bug

Image alignment functionality seems to be broken in the latest update. When attempting to align images (e.g., left, center, or right), the alignment has no visible effect in the editor or the output.

To Reproduce:

1. Add an image block to the editor.

2. Try changing the alignment (left, center, right).

3. Observe that the image remains unaligned and does not reflect the intended position.

[nperez0111]

Dupe of #1687