feat: barlist color improvement on dark mode

[severinlandolt]

Description

This PR solves the color issue of the barlist with dark mode.

Closes #612
Closes #192

What kind of change does this PR introduce? (check at least one)

• Bug fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing applications:

How has This been tested?

Screenshots (if appropriate):

The PR fulfills these requirements:

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• My change requires a change to the documentation. (Managed by Tremor Team)
• I have added tests to cover my changes
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[github-actions]

🎉 This PR is included in version 3.9.0-beta.7 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

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