[FEATURE]: Two-column Layout

[niksingh710]

Summary

Two-column Layout.

I know this seems nonsense to exist but at a time some time, there should be only two windows at a time. and others should hide behind slave window.

A clear and concise description of what you want to happen

Switching to a two-column layout should stack other window behind the non master window.

A clear and concise description of any alternative solutions or features you've considered.

No response

Additional info

is there any documentation on bismuth api.