Feature Request: Auto-generate Quizzes using LLM APIs

### Description
Add support for generating quizzes automatically using an Gemini API.

- User enters a topic or idea.
- App sends request to an Gemini API .
- Quiz questions and answers are generated dynamically.
- Generated quiz is displayed in the same format as manually created quizzes.

### Benefits
- Faster quiz creation.
- More engaging for users.
- Expands variety of quiz topics without manual effort.

### Acceptance Criteria
- Input field for user to type topic/idea.
- API integration to fetch generated questions and answers.
- Display quiz in existing quiz UI.
- Handle errors (e.g., API failure, empty responses).

### Optional Enhancements
- Allow user to adjust difficulty/number of questions.
- Save generated quizzes locally for reuse.