change background to white

[github-actions[bot]]

🎊 PR Preview 59350729909e6f6ceeb073435edfce60357f0421 has been successfully built and deployed to https://CarletonComputerScienceSociety-website-build_preview-pr-429.surge.sh

:clock1: Build time: 0.012s

_{🤖 By surge-preview}

[MathyouMB]

@cpz98 could you link the issue and include a screenshot of where your change is? Please also run the code formatter.