[Dark Mode] Some components do not adapt colors correctly in dark mode

[maneeshkumarr]

Bug Description

After enabling dark mode, some components still use light-mode specific classes like:

• text-black
• bg-white
• border-gray-100

These cause visual issues such as unreadable text or low contrast in dark mode.

Suggested Fixes

Update styles using Tailwind’s dark mode variants:

• text-black → text-gray-900 dark:text-white
• bg-white → bg-white dark:bg-gray-900
• border-gray-100 → border-gray-100 dark:border-gray-700

Related PR

• PR: feat: add DarkModeToggle with lucide icons and theme handling #32