1. add filter callback;
1.1. partially
added recording of pressed keys;
1.2. TODO,
handle esape to close the window;
handle to select the entry;
handle hjkl, arrows
to change the selection;
handle pressed keys otherwise, ideally
after i has been pressed,
or handle hjkl after escape has been presed;
to restrict entries to the matching pattern
visualize current filter, and ins/normal mode
in the popup title;
Siarhei Siniak
f59e0bbe6c