fix(types): include @default annotations for props that are undefined by default (#1020)

* chore(deps-dev): upgrade sveld to v0.12.1

* Run "yarn build:lib"

* Re-run "yarn build:lib"

types/Select/Select.svelte.d.ts

@@ -5,11 +5,13 @@ export interface SelectProps
   extends svelte.JSX.HTMLAttributes<HTMLElementTagNameMap["div"]> {
   /**
    * Specify the selected item value
+   * @default undefined
    */
   selected?: string;
 
   /**
    * Set the size of the select input
+   * @default undefined
    */
   size?: "sm" | "xl";
 
@@ -39,6 +41,7 @@ export interface SelectProps
 
   /**
    * Specify a name attribute for the select element
+   * @default undefined
    */
   name?: string;