Fix Dark Mode Styling on Knowledge Page

Description

Dark mode is not working properly on the Knowledge page. Several sections still display light backgrounds or incorrect text colors, leading to poor readability and inconsistent theme behavior.

The page should fully support dark mode to maintain a smooth and consistent user experience across the platform.

Expected Changes

• Fix dark mode support on the Knowledge page
• Update backgrounds, text, cards, and section styles
• Ensure proper contrast and readability
• Maintain consistency with the global dark theme
• Test responsiveness in both light and dark modes

Possible Areas to Check

• Hardcoded background/text colors
• Missing dark mode CSS classes
• Inconsistent card or container styling
• Components not inheriting theme styles