This adds the basics for custom rendering of drag images similiar to how vscode does it. For now its just text showing what kind of cell is being dragged. This can be improved on later
How to test
Open a notebook and drag a cell. Should show a text now instead of the full cell list view
Follow-ups
Review checklist
[x] As an author, I have thoroughly tested my changes and carefully followed the review guidelines
What it does
This adds the basics for custom rendering of drag images similiar to how vscode does it. For now its just text showing what kind of cell is being dragged. This can be improved on later
How to test
Open a notebook and drag a cell. Should show a text now instead of the full cell list view
Follow-ups
Review checklist
Reminder for reviewers