fix(tree-view-node): correctly type computeTreeLeafDepth export

Author: metonym

src/TreeView/TreeViewNode.svelte

@@ -1,8 +1,7 @@
 <script context="module">
   /**
    * Computes the depth of a tree leaf node relative to <ul role="tree" />
-   * @param {HTMLLIElement} node
-   * @returns {number} depth
+   * @type {(node: HTMLLIElement) => number}
    */
   export function computeTreeLeafDepth(node) {
     let depth = 0;

types/TreeView/TreeViewNode.svelte.d.ts

@@ -3,7 +3,7 @@ import type { SvelteComponentTyped } from "svelte";
 /**
  * Computes the depth of a tree leaf node relative to <ul role="tree" />
  */
-export declare function computeTreeLeafDepth(): any;
+export declare function computeTreeLeafDepth(node: HTMLLIElement): number;
 export type TreeNodeId = string | number;
 
 export type TreeViewNodeProps = {