refactor: convert js to ts

src/views/quick-access-tree.ts

@@ -1,7 +1,9 @@
 import * as vscode from 'vscode';
 
 class QuickItem extends vscode.TreeItem {
-  constructor(label, command, args, collapsibleState, children) {
+  customChildren: QuickItem[] | undefined;
+
+  constructor(label: string, command?: string, args?: any, collapsibleState?: vscode.TreeItemCollapsibleState, children?: QuickItem[]) {
     super(label, collapsibleState);
     if (command) {
       this.command = {
@@ -15,7 +17,7 @@ class QuickItem extends vscode.TreeItem {
 }
 
 export default class QuickAccessTreeProvider {
-  getChildren(element) {
+  getChildren(element: QuickItem) {
     if (element && element.customChildren) {
       return element.customChildren;
     }
@@ -38,7 +40,7 @@ export default class QuickAccessTreeProvider {
     ];
   }
 
-  getTreeItem(element) {
+  getTreeItem(element: QuickItem) {
     return element;
   }
 }