Add converter for disease incubation/duration units

modules/babele-register.js

@@ -662,6 +662,10 @@ Hooks.once('init', () => {
       // Auto-translate duration
       "spells_duration_range_target_damage": (value) => {
         return WFRP4FrTranslation.processSpellContent(value);
+      },
+      // Auto-translate disease duration units
+      "disease_duration_unit": (unit) => {
+        return game.i18n.localize(unit).capitalize();
       }
   });
   }