Bracket Balancer (Still has a bug)

I almost finish the project except the bug that bug me all time (pun intended).

The project's main features are complete. I finish the animation of stack pushing and popping, displaying the position of imbalanced bracket, and resetting button. I cannot finish the pausing animatino feature. I assume that it is related to how state is updated in Vue 3. I use composition API with ref and reactive. The devtool is not quite stable yet. It is just in the beta channel.

I wish I will eventually find a way to fix that bug or reimplement the pausing feature. In the worst case, I might need to reimplement the whole animation system. I hope I can do it.