fixed notebook document metadata edit and added execute cells above/below commands

[jonah-iden]

What it does

This does two things:

1. it fixes the document metadata edits and adds the workspace bulk edit api for notebooks. This allows the run by line command to be shown (there is no debugging support yet for notebooks, so this menu entry has no functionality yet)
2. this adds the execute cell above and execute cell and below commands to the notebook cell toolbar

(also removes the notebook debug menu entry since its not supported currently)

How to test

Open a notebook and add a few code cells.
Select a cell and click the ... in the toolbar. After granting workspace trust the run by line command should be available.
Execute both execute cell above and execute cell and below commands and see the cells should executed correctly according to the command

Follow-ups

Review checklist

• As an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• As a reviewer, I agree to behave in accordance with the review guidelines

[jbicker]

Works and looks good!