Peek definition able to take width of the editor rather than the window

[TheNoeTrevino]

Is your feature request related to a problem? Please describe.
When I use peek definition while having more than one window open, the peek can be very small in width, when I have just one, it is must too large. It would be great to have the option to have it be consistent

Currently, this plugin has that functionality, but does not have the very convenient mapping functionality that lspsaga has. I would love for there to be a best of both worlds.

https://github.com/rmagatti/goto-preview

I could be wrong, but it could be rather simple to implement, as what I am thinking is exactly what the references feature does. Maybe getting the width from the editor rather than window. I will try to contribute when I get the time, but this is a feature I would love to have.