as a user i want to hide a notebook until i explicitly publish it

Short summary of the bug. Please include the IODIDE version number where you found the bug - if you are just running locally (building for dev or prod) you can put MASTER

### What I Did

code sample or exact steps that causes the bug

### What I Expected

explanation, imgs, etc.

### What Happened

explanation, imgs. etc.

### (OPTIONAL) notebook that reproduces bug

link to the notebook that reproduces the bug, or just inline it in the issue