Don't use bindsym for language switching

The in-line comment startles i3, and by the way using bindsym here is
not so useful when using only CS and EN, which have 'n' at the same
place.

dotfiles/i3/config

@@ -242,8 +242,8 @@ bindsym $mod+Shift+o        exec "task context none"
 ## Desktop-ey other stuff                                               ##
 #------------------------------------------------------------------------#
 
-bindcode $mod+57                exec "$spn bmo kb next"     # 57 translates to 'N' so these are basically $mod+n abd $mod+Shift+n
-bindcode $mod+Shift+57          exec "$spn bmo kb home"
+bindsym $mod+n                  exec "$spn bmo kb next"
+bindsym $mod+Shift+n            exec "$spn bmo kb home"
 bindsym $mod+Insert             exec "$spn bmo clip save"
 bindsym $mod+Shift+Insert       exec "$spn bmo clip open"
 bindsym $mod+d                  exec "xbacklight -dec 49"