Add Undo and Redo

[soustab10]

Add a Undo and Redo feature to the existing set of features.

• Undo: Will restore the previous text state.
• Redo: To redo the actions inflicted by the undo button.

I think this functionality will greatly improve the overall functionality and the user-experience. If approved, I would like to work on this issue.

[Abhishek3223]

i would like to contribute on it please assign this to me and please add hacktoberfesr tag to it

[soustab10]

@Susmita-Dey Please approve this feature, and add the hacktoberfest tag, and assign it to me.