Describe the problem
During a cursory review of dark modes styles in Kibana, I noticed that the inline mode of EuiDescriptionList does not meet minimum contrast levels. The same WCAG failure can be seen in the EUI docs example as seen below.

To Reproduce

1. Start up / log in to a Kibana instance (install sample data, if needed)
2. In the upper right, go to Edit Profile and change to 'Dark' mode
3. Navigate to Discover and see the result below

Proposed solution

Set the text color on the dt to text color when in dark mode.

WCAG or Vendor Guidance (optional)

• WCAG 2.1 Success Criteria - color contrast