Monaco editor does not resize with browser window

[victor-meng]

Application or Package Used
nteract on jupyter

Describe the bug
The monaco editor has fixed width and height which does not change based on browser window size. This causes multiple issues on the UI when the user resizes the browser.

To Reproduce
Steps to reproduce the behavior:

1. Open notebooks
2. Open a json/txt file large enough to make the scroll bar appear
3. Shrink the browser window
4. Notice that the scroll bar disappears
5. Restore the browser window to full size and return to notebooks directory
6. Shrink the browser window before opening the json/txt file
7. Open the file and restore the browser window to full size
8. Notice that the editor does not resize

Expected behavior
The editor should resize based on the browser window size. The scroll bar should always be visible and functional.

Screenshots
Open first then shrink (note that the scroll bar on the top right is NOT the scroll bar for the editor):

Shrink first, open, then restore to full size:

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version 78.0.3904.70

[stale]

This issue hasn't had any activity on it in the last 90 days. Unfortunately we don't get around to dealing with every issue that is opened. Instead of leaving issues open we're seeking to be transparent by closing issues that aren't being prioritized. If no other activity happens on this issue in one week, it will be closed.
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