refactor: add @filterable tag to filterable properties

src/things/dish.ts

@@ -38,6 +38,7 @@ export interface SCDishWithoutReferences
   /**
    * Additives of the dish
    *
+   * @filterable
    * @keyword
    */
   additives?: string[];
@@ -119,6 +120,7 @@ export interface SCDishCharacteristic {
   /**
    * Name of the characteristic
    *
+   * @filterable
    * @text
    */
   name: string;