Timer Component in React

As we've built many features to justify the one-liner description of this project i.e. a go-to networking tool, now it's time to revamp the existing UI.

Add a new component Timer.js which will be enabled once the user starts scanning( scan button is clicked). Refer the image attached below for design.

As of now, create a button Timer in the Timer.js component along with the timer. The timer should start when Timer button is clicked

P.S. : The basic frontend on react is available on feature/react branch in the folder network-scanner. Add your components in the same branch. Do not make any changes in App.js / index.js.