The data tooltip is hardly discoverable inside the "Helpfulness votes charts"

[emilghittasv]

Preconditions
Sign in to SUMO

Steps to reproduce
Steps to reproduce the behavior:

1. Navigate to a kb article that has a couple of votes (example: https://support.allizom.org/en-US/kb/access-mozilla-services-firefox-account/history)
2. Try identifying the hit areas for the data tooltips.

Expected behavior
The data tooltips are easily discoverable.

Actual behavior
The data tooltips are hardly discoverable.

Screencasts

Desktop:

• OS: Windows 11
• Browser: Firefox

Additional context
This issue is reproducible in stage