Improve layout for narrow screens

[Zahnentferner]

When the screen is narrow, the main content is shown too much in the bottom, requiring scrolling, and a lot of empty space is left in the right side of the screen.

[Arnav-Nehra]

Please assign me @Zahnentferner @kumawatkaran523

[kumawatkaran523]

Please assign me @Zahnentferner @kumawatkaran523

@Arnav-Nehra ,What is the status? Are you still working ?

[Arnav-Nehra]

@kumawatkaran523 raised an PR to close this issue, please tell me if any changes are required.