Nyamrup new design changes

[Karma-Tsering]

description

As nyamup's new design is ready, Need to modify the following changes.

subtask

• Update route for contribution, about and leaderboard
• Navigation & Header
• Contribution Section
• Validation Section
• About Section
• Leaderboard
• General UI Components (Buttons, progress bar, cards)
• Footer
• Clean up the unused components

[TenzDelek]

@Karma-Tsering footer update and some UI changes has been reflected