[FEAT]adding an Undo button to revert back to the previous changes that was made

[AdhithiManjunath]

Is your feature request related to a problem? Please describe.
generally if a person draws a sketch and makes slight mistake , the sketch has to be made again from d beginning

Describe the solution you'd like
best solution for this would be adding on eraser as a feature , or creating an undo button so that it can revert back to the previous change made

Describe alternatives you've considered
eraser so that erase that part where changes are made
we can even include redo button too

Additional context
please do allocate me this issue so that i can contribute to it . thank you !!

[github-actions]

Hi there! Thanks for opening this issue. We appreciate your contribution to this open-source project. We aim to respond or assign your issue as soon as possible. In the meantime you can star the repo and read the contributing.md

[singodiyashubham87]

@AdhithiManjunath Duplicate of #32