[BUG] black background - cudf.pandas.line_profile

**Describe the bug**
When profiling the GPU using cudf.pandas.line_profile, the 'Line' output has a black background with light font even when the notebook background is white.

**Steps/Code to reproduce bug**
```python
%%cudf.pandas.line_profile
df = pd.DataFrame({'A': [1, 2, 3]})
```
**Expected behavior**
The text output in 'Line' column should make the rest of the text

**Environment overview (please complete the following information)**
Both local and GCP Colab notebook.