HealthLedger react-version homepage component

[AhmedElbohoty]

• [ X ] Included a Preview link and screenshot showing after and before the changes.
• [ X ] Included a description of the change below.
• Squashed the commits.

Changes done in this Pull Request

Refactoring the front-end code by using React.

Description / Changes

Hello my friends :
I am Ahmed . I am trying to refactor the front-end code by using React.

The animation was done with vanilla css and js. I am planning to add more .

for now i am partially using materializecss. But i am planning to remove it soon.

I finished the homepage and it is responsive. I will code the other page in react as soon as possible.

I will Desgin TEAM (contributor) page.

Feel Free To tell me any changes you want.

I make all changes in another branch "react-version"

make sure you are in "client" directory

cd client

and run this

npm start

I hope you like it :) .

Screenshots if any:

Before:

After:

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