[IMPROVEMENT] : Make UI responsive

[AmitBarman99]

1> The home background image is very big size, plz compressed it. 2> In Explore section the glass effects box UI is leftside aligned. (when screen >850px) 3> The things in this explore box are also not responsive. 4> About us section should have a leftside paddings at screen >770px. 5> Contribution box are too big. 6> There is no contribution part in navbar. 7> Navbar has a few less padding.

[AmitBarman99]

Hey @PritamSarbajna I have solved all the problems related to this website. Here you can see

Click here

[PritamSarbajna]

@AmitBarman99 this is so awesome man please make a PR 🙌

I also added you as a collaborator

[AmitBarman99]

I made a PR #54