Fixing [https://biobranch.vercel.app/apply] container size and visibility

[Pheonixrog]

Is your proposal related to a problem?

In the apply page the container is soo small and doesn't have proper spacing according to the ratios of the screen , it makes the forum look abnormal.

Describe the solution you'd like

I want to change the height and width of the container and want to provide proper spacing in that,

Describe alternatives you've considered

I was thinking that the background is in dark mode or we can say it's a dark background in apply page. So, we can change the theme of the forum too.

Additional context

[Pheonixrog]

Please assign this to me i want to solve this problem