[BUG] Map overrides theme in VSC interactive display.

[deanm0000]

Context

When using lonboard in VSC jupyter interactive in dark mode, once I display a Map, the output for everything carries the theme of the Map of white background. Before running a map it looks like:

Resulting behaviour, error message or logs

After having run a map it looks like this:

Environment

Platform: Linux-5.15.153.1-microsoft-standard-WSL2-x86_64-with-glibc2.35
Python: 3.12.2 (main, Feb 25 2024, 16:35:05) [GCC 11.4.0]

• Lonboard Version: '0.10.3'
  VSC: 1.93.1
  Chromium: 124.0.6367.243

Steps to reproduce the bug

Using VSC with dark theme. Make a map then all cells get the Map's style, at least for background and font.

[kylebarron]

I don't particularly understand CSS styling and what's happening here. But it's also quite difficult to provide CSS that works as expected in every environment, when Jupyter/JupyterLab/Colab/vscode etc are all implemented in different ways. Happy to accept a PR or maybe @vgeorge has time at some point to look into this. (but lower priority than some bugs in the last release like #675)