VisiGrab: Algorithms & DSAv1.22.0

What changed

• ContentAdded end-of-topic quizzes for sorting algorithms, trees, traversals, and graph algorithms
• New featureImplemented step-by-step visualization for build-heap showing comparisons and swaps

Original release notes

• Added end-of-topic quizzes to every remaining topic — sorting algorithms, trees, traversals, and graph algorithms
• Heap: build-heap now runs step by step from the info dialog, showing every comparison and swap