build: add script to generate component index

- move typedefs for correct type parsing

src/ListBox/ListBoxSelection.svelte

@@ -11,10 +11,6 @@
    */
   export let disabled = false;
 
-  /**
-   * @typedef {"clearAll" | "clearSelection"} ListBoxSelectionTranslationId
-   */
-
   /**
    * Default translation ids
    * @constant
@@ -37,6 +33,10 @@
    */
   export let ref = null;
 
+  /**
+   * @typedef {"clearAll" | "clearSelection"} ListBoxSelectionTranslationId
+   */
+
   import { createEventDispatcher, getContext } from "svelte";
   import Close16 from "carbon-icons-svelte/lib/Close16";