Add Stress Level Assessment App idea

[Shalini648404]

Added a new project idea: Stress Level Assessment App. This React-based app allows users to assess their stress levels through an interactive self-evaluation quiz. It calculates real-time stress scores and offers personalized relaxation techniques. The idea includes components for the quiz, results, and progress tracking, and suggests possible technologies like React, TypeScript, and Tailwind CSS for the frontend. The project is aimed at improving mental well-being by providing tools for stress management.