fix: theme colors for dark mode

[rajanarahul93]

Summary

This PR resolves Issue #69 by making the Analytics Overview page fully theme-aware. It ensures all badges, stats boxes, and text are readable and visually consistent in both light and dark modes.

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Changes Made

• Replaced bg-border with bg-secondary to use theme-aware surface colors.
• Updated text colors from hardcoded hex values to text-secondary-foreground for proper contrast.
• Ensured all badges and stats boxes adapt to both themes automatically.

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Screenshots

Light Mode

Dark Mode

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Testing

• Verified the /analytics-overview page locally.
• Switched between light and dark modes using the theme toggle.
• Confirmed all badges, icons, and text are readable in both modes.

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Linked Issue

Closes #69

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Checklist

• No hardcoded colors remain—using theme variables.
• Icons and text maintain contrast in both themes.
• Screenshots provided for maintainers to verify.

[Samuel1-ona]

@rajanarahul93 Hello, please, the dark mode needs to reflect on the background.

[Samuel1-ona]

@rajanarahul93 fix conflicts and check the analytics details page to see how it was implemented.