Docs: "Tool Support" section is not readable with white logos

[rangoo94]

Describe the bug

"Tool Support" section in docs looks bad with white logos

To Reproduce

1. Open docs.testkube.io
2. Scroll down to "Tool support" section

Expected behavior

All the logos should be readable

Screenshots

[rangoo94]

The strange thing is, that when I go to any other page (i.e. "Supported Test Types" in the sidebar) and go back to the "Overview" the icons become black:

Looks like the <img>s get style="filter: invert(1);" then.