Slideout sidebar on mobile

[pbsds]

Describe the problem

Currently i find myself sliding my thumb from the left side, to the right, trying to get the rooms and spaces to come out, as i am used to in thelounge.
The current way to open the sidebar is to stretch my thumb to the upper left corner of the screen and hit the hamburger button, which is poor UX.

Describe the solution you'd like

The ability to slide out the sidebar with swipe/gesture from the left to the right on tough screens in portrait mode.
Something like how the sidebar in thelounge behaves. Relevant issue and description: thelounge/thelounge#393

Alternatives considered

doing nothing

Additional context

People tend to have big phones.