Feature Request/enhancement; Option to ONLY show sidepanel when screensize <

[ImagineerNL]

I currently use this dashboard for multiple routes, one being that it is the only dashboard that enables an iframe as a full page next to a set of sidebar buttons.
This is useful for example for my 3D printer that has a control webpage, but also HA used entities (power, powerusage, lights, etc)

When on my mobile, the screen is too small for the iframe in the main page, but the sidebar buttons are still very useful and practical.

Enabling an option to define if the sidebar OR the main page should be shown when the screen is < min width would be great.
Enabling it as 2 options ( show sidebar Y/N, show main Y/N) would also fix the issue #10