[FEAT]: Adding an undo option in the application

[mondalsurojit]

Is your feature request related to a problem? Please describe.
To some extent. As when a user is drawing on the canvas, if something goes wrong, he/she can't correct it and the only left option is to "CLEAR" the whole canvas

Describe the solution you'd like
I would like to add an undo button, which when clicked wil take the user to the last change and discard the latest change

Describe alternatives you've considered
Adding an eraser option maybe. But both are different, with different purposes.

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[github-actions]

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[singodiyashubham87]

@mondalsurojit Duplicate of #32