Add smaller step resize bindings

dotfiles/i3/config

@@ -150,6 +150,10 @@ mode "resize" {
         bindsym Down        resize grow     height  200 px or 12 ppt
         bindsym Up          resize shrink   height  200 px or 12 ppt
         bindsym Right       resize grow     width   200 px or 12 ppt
+        bindsym Shift+Left  resize shrink   width   25 px or 2 ppt
+        bindsym Shift+Down  resize grow     height  25 px or 2 ppt
+        bindsym Shift+Up    resize shrink   height  25 px or 2 ppt
+        bindsym Shift+Right resize grow     width   25 px or 2 ppt
         bindsym Return      mode "default"
         bindsym Escape      mode "default"
 }