[BUG] - Jupyter Dark theme is not respected

### Describe the bug

It is a pain to use conda-store in JupyterLab at night

### Expected behavior

Dark theme is respected (if conda-store supports it)

### How to Reproduce the problem?

Switch JupyterLab to Dark theme, open conda store tab

### Output

_No response_

### Versions and dependencies used.

_No response_

### Anything else?

_No response_