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/logging/logrotate.nix

@@ -13,6 +13,7 @@ in
   options = {
     services.logrotate = {
       enable = mkOption {
+        type = lib.types.bool;
         default = false;
         description = ''
           Enable the logrotate cron job