Add missing 'type', 'defaultText' and 'literalExample' in module definitions

- add missing types in module definitions
- add missing 'defaultText' in module definitions
- wrap example with 'literalExample' where necessary in module definitions

nixos/modules/services/misc/felix.nix

@@ -23,7 +23,9 @@ in
       };
 
       bundles = mkOption {
+        type = types.listOf types.package;
         default = [ pkgs.felix_remoteshell ];
+        defaultText = "[ pkgs.felix_remoteshell ]";
         description = "List of bundles that should be activated on startup";
       };