Tic Tac Toe game

What are you most proud of, and what would you do differently next time?

I'm most proud of having persistent states where the game is saved in the browser, and some custom additions to the challenge to make it more interesting.

What challenges did you encounter, and how did you overcome them?

I had a lot of troubles syncing data between components, for example, making the computer make a move when it has to go first, I added a reactive state specifically for starting the game, checking if it's the user's or CPU's turn and make a move accordingly.

What specific areas of your project would you like help with?

I wonder if some controls are good enough for accessibility, like using 1-9 to choose the boxes, but the boxes are "buttons" and probably not the 'right' HTML element for this purpose. What should I add/modify for accessibility?