[BUG] <hr> Tags crossing through visualizations

[SanJSp]

Describe the bug

When viewing my metrics, I am distracted by the <hr> tags that cross right through the metrics instead of separating them.

Screenshots

To Reproduce

Steps to reproduce the behavior:
Simply open some metrics

Expected behavior

I'd like the hr tags to separate the metrics right above the headers of a metric.

[LucPrestin]

I could imagine, that it's essentially the same problem as in #82. The visualization doesn't seem to regard its container and draw over its bounds which results in the <hr> being inside the visualization.