build: add script to generate component index

- move typedefs for correct type parsing

src/FileUploader/FileUploaderDropContainer.svelte

@@ -1,8 +1,4 @@
 <script>
-  /**
-   * @typedef {string[]} Files
-   */
-
   /**
    * Specify the accepted file types
    * @type {string[]} [accept=[]]
@@ -64,6 +60,10 @@
    */
   export let ref = null;
 
+  /**
+   * @typedef {string[]} Files
+   */
+
   import { createEventDispatcher } from "svelte";
 
   const dispatch = createEventDispatcher();