Fix kernel dialog sections sizing

[krassowski]

Reference Issues or PRs

Fixes https://github.com/nebari-dev/jupyterlab-launchpad/issues/40

When the number of environments >> number of running kernels

Here it is 44 (number of environments) >> 3 (number of running kernels)

Before	After

When number of environments << number of running kernels

Here 3 << 32

Before	After

When both hold comparable number of items

Here 16 == 16

Before	After

What does this implement/fix?

Put a x in the boxes that apply

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds a feature)
• [ ] Breaking change (fix or feature that would cause existing features not to work as expected)
• [ ] Documentation Update
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no API changes)
• [ ] Build related changes
• [ ] Other (please describe):

Testing

• [x] Did you test the pull request locally?
• [ ] Did you add new tests?

[github-actions[bot]]

:point_left: Launch a Binder on branch nebari-dev/jupyterlab-launchpad/kernel-dialog-sections-sizing