[Feature Request]: Add dark mode for all 3 best trip packages pages

[Asymtode712]

Is there an existing issue for this?

• [X] I have searched the existing issues

Feature Description

Currently our website's best trip packages' individual pages don't have a theme toggle button and the dark theme, I would like to implement both the things

Use Case

Users can specifically choose between 2 different themes according to their convenience

Benefits

No response

Add ScreenShots

Priority

High

Record

• [X] I have read the Contributing Guidelines
• [X] I'm a GSSOC'24 contributor
• [ ] I'm a VSOC'24 contributor
• [X] I have starred the repository

[Asymtode712]

@itsekta @apu52 please assign me this issue