Addition of GraphQL logo Issue#828

[Nitin8426]

Thank you for your contribution! Before sending this Pull Request, please confirm the following:

• You have read the contributing guidelines
• The icon's size is under 1,024 Bytes
• The layout of the SVG looks like this including newlines

<svg xmlns="http://www.w3.org/2000/svg"
aria-label="..." role="img"
viewBox="0 0 512 512"><path
d="m0 0H512V512H0"
fill="#fff"/> ... </svg>

If you have done the above, please send the Pull Request.

[Nitin8426]

Kindly Accept this PR under hacktoberfest-accepted laber for Hacktoberfest 2024.looking forward to listen from you.

[edent]

@Nitin8426 This is very nearly there! Please make it look similar to the other images on the site. It should have a white background, it should also be centred in the viewbox. Thank you.