Redux is an open-source JavaScript library for managing application state.
It is most commonly used with libraries such as React or Angular for building user interfaces.
You've already created counters in vanilla javascript and using React.
Now You will be creating a counter using Redux.

• Create a simple counter using Redux
• Overall state should be an object with key as counter and value will be only integers (+ve / -ve / 0)
• Counter will be updated by click two buttons '+' / '-'
• '+' will increase counter by 1
• '-' will decrease counter by 1
• '+' and '-' button should be visible.
• Display current counter value inside a tag which have attribute data-testid='counter'