Trivia.jsx : Add “Next Question” Button Navigation

Currently, the quiz displays all questions at once. To improve user experience, we should add a “Next Question” button that allows users to move through questions one by one instead of seeing them all together.

Acceptance Criteria:

Display only one question at a time.

Add a Next Question button that appears after selecting an answer.

Show final results after the last question.

Keep score tracking consistent with the current logic.

Bonus:
Add a subtle transition (e.g., fade-in/fade-out) when switching between questions for smoother navigation.