Tic-Tac-Toe game in Flutter.

📃 Widgets Used:
Stateless Widget
Stateful Widget
Scaffold
Containers
Rows and Columns
Padding
Expanded
Gesture Detector
📜 Created methods for Winner, Runner, and Draws.
Checks the rows, columns for the winner and runner. If the game is not over it gives an option to draw.
After the completion of one round, the result will be popped up and then we can play the game again.