i3: add screenshot active window shortcut

modules/i3/default.nix

@@ -9,6 +9,7 @@ in with theme.colors; {
     playerctl # pactl comes with PulseAudio
     wmctrl # For rofi power menu
     xborders # Active window borders
+    maim xdotool # Active window screenshots
   ];
 
   # Screenshots
@@ -96,6 +97,7 @@ in with theme.colors; {
 
         # Screenshots
         "Print" = "exec flameshot gui";
+        "${mod}+Print" = "exec maim -i \"$(xdotool getactivewindow)\" | xclip -selection clipboard -t image/png";
 
         # Remove dmenu
         "${mod}+d" = null;