Quiz features updated

[Glynis1314]

Summary

#10 issue number
Completely revamped the quiz functionality with three major feature sets:

Question Categories & Difficulty Filtering

Added category dropdown (General Knowledge, Science, Math, Geography, History, Computers)

Difficulty level radio buttons (Easy, Medium, Hard, Any)

Configurable question count (5, 10, 15, 20 questions)

Enhanced Shuffling & Session Management

Fisher-Yates shuffle algorithm for questions and answers

Toggle options for shuffling questions and answer choices

Proper session state management with restart functionality

Visual Progress & Timer System

Animated progress bar showing completion status

Question counter (e.g., "Question 3 of 10")

20-second per-question timer with visual warnings

Auto-advance on time expiration

Checklist

• Linked issue (if any)
• Ran locally without console errors
• Focused scope (kept PR small)
• Updated docs or TODO comments if needed

Screenshots

Before

After

[vercel]

@Glynis1314 is attempting to deploy a commit to the hrishikesh-dalal's projects Team on Vercel.

A member of the Team first needs to authorize it.