Option to keep nearby buffers big as well about lens.vim

[habamax]

check if this fixes your issue #25 (comment)

[habamax]

Not clear what should happen with edge cases, like

1. what if there are 2 windows?
2. what if there are 2 horizontal windows?
3. what if there are 3 vertical windows and and vim (gvim or terminal) size is not enough to hold 3 equal big windows? and you switched to most left? or to most right?
4. what if there are 4 vertical windows and there is not enough space etc etc etc

[hakunin]

Is there a way I can experiment with this and get back to you?
Which part of the code should I look at to customize the sizing function?

I think I'd start with this logic and see how it behaves.

current_open_width = get_ideal_width(current_window)
left_open_width =  get_ideal_width(left_window)
right_open_width =  get_ideal_width(right_window)

lens_width = current_open_width + left_open_width + right_open_width
min_remaining_width = min_width * other_window_count

while ((screen_width - lens_width - min_remaining_width) < 0) { 
  left_open_width -= 1
  right_open_width -= 1
  lens_width = current_open_width + left_open_width + right_open_width
}