Enhancement: SignatureListBufferMarks: Don't lose window focus while navigating the list

[poetaman]

Hi, thanks for this plugin! Can we please have a feature to not lose window while navigating the marks list? Ideally navigating the list up and down would move to the mark location while maintaining the focus in the location window. This can be achieved by executing :wincmd p (p stands for previous) after jumping to the next/prev mark.