[explore] Chart embed code modal glitch

[adam-stasiak]

When I change size of code block then I can make this bigger than modal

Expected results

Modal should react to code size change.

Actual results

Code is outside the modal

Screenshots

Nagranie.z.ekranu.2021-01-12.o.14.40.56.mov

How to reproduce the bug

1. Go to chart
2. Click on embed code
3. adjust size
4. See error

Environment

commit 90915db
docker

• superset version: superset version
• python version: python --version
• node.js version: node -v

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• [x ] I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• [x ] I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

[junlincc]

@kgabryje let's hop on this one while i try to repro the other two bugs for ya~

[jinghua-qa]

Still able to reproduce this issue

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. For admin, please label this issue .pinned to prevent stale bot from closing the issue.

[rusackas]

Looks like the PR that closed this wasn't linked properly. Closing!