fix: increase file explorer visibility timeout to fix flaky test

The test was failing on macOS CI because it only waited 2 seconds for the .vscode folder to appear in file explorer. This increases the timeout to 10 seconds using the new TimeoutConstants.FILE_EXPLORER_TIMEOUT constant.

Author: EmmaYuan1015

test/smoke/suites/helper/componentHelper.ts

@@ -64,7 +64,10 @@ export class ComponentHelper {
         fileName: string,
     ): Promise<ElementHandle<SVGElement | HTMLElement> | null> {
         try {
-            return await ElementHelper.WaitElementAriaLabelVisible(fileName, 2000);
+            return await ElementHelper.WaitElementAriaLabelVisible(
+                fileName,
+                TimeoutConstants.FILE_EXPLORER_TIMEOUT,
+            );
         } catch {
             return null;
         }

test/smoke/suites/helper/timeoutConstants.ts

@@ -26,4 +26,7 @@ export class TimeoutConstants {
 
     /** Packager state change timeout - 3 minutes (180 seconds) */
     static readonly PACKAGER_STATE_TIMEOUT = 180000;
+
+    /** File explorer element visibility timeout - 10 seconds */
+    static readonly FILE_EXPLORER_TIMEOUT = 10000;
 }