nixos: environment.pathsToLink += some desktop dirs

Close #9622.
(adding common desktop locations and locations specified in
http://standards.freedesktop.org/menu-spec/1.1/)

obadz afdfe76b 119a6e33

Changed files
+6
nixos
modules
+6
nixos/modules/config/system-path.nix
···
"/lib"
"/man"
"/sbin"
+
"/share/applications"
+
"/share/desktop-directories"
"/share/doc"
"/share/emacs"
+
"/share/icons"
"/share/info"
"/share/man"
+
"/share/menus"
+
"/share/mime"
"/share/nano"
"/share/org"
"/share/terminfo"
+
"/share/themes"
"/share/vim-plugins"
];