Added kinematics calculator

[shraddhha]

Fixes Issue🛠️

#1595

Closes #1595

The Kinematics Calculator is an interactive tool that computes and visualizes motion in 1D, 2D, and 3D, offering quick calculations and velocity-time graphs for educational and practical applications.

Type of Change📄

• [ ] Bug fix (non-breaking change which fixes a bug)
• [x] New feature (non-breaking change which adds functionality)
• [x] Style (non-breaking change which improves website style or formatting)
• [ ] Documentation (non-breaking change which updates or adds documentation)
• [ ] Responsiveness (non-breaking change which improves UI/UX on different screen sizes)

Checklist✅

• [x] I am an Open Source contributor
• [x] I have performed a self-review of my code
• [x] My code follows the style guidelines of this project
• [ ] I have commented on my code, particularly in hard-to-understand areas

Screenshots/GIF📷