[FEATURE REQUEST] Pop out Preview into own window/pane

[metal-gabe]

I would like to ability to separate the preview section into its own window.

Personally, I use multiple vertical monitors, and using the vertical layout is alright, but I lose a lot of the value of having vertical monitors (i.e. I don't see as much data/info).

I am trying out the scenario of extending the window across two vertical monitors and it works okay, but some things are getting cut off. Also, because the sidebar doesn't retain its size, I have to constantly (re-)adjust everything when I open the app.

I would not be surprised if this took a considerable amount of effort to add, but if possible, it would be very helpful.