Add TMDB rate limiting tests (22 tests, needs async mock refinement)

tests/frontend/e2e/queue_interactions.spec.js

@@ -3,7 +3,7 @@
  * Tests queue management user flows, download control, and persistence
  */
 
-import { test, expect } from '@playwright/test';
+import { expect, test } from '@playwright/test';
 
 test.describe('Queue Page - Initial Load', () => {
     test('should load queue page successfully', async ({ page }) => {

tests/frontend/unit/queue_ui.test.js

@@ -3,7 +3,7 @@
  * Tests queue management, button handlers, display updates, and statistics
  */
 
-import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 
 // Mock DOM setup
 function setupDOM() {