test: Update tests to use event.code format for keyboard shortcuts

- Update keybinding tests to use event.code instead of event.key
- Add forwarding test for keybinding service
- Align tests with the fix for non-English keyboard layouts

This ensures tests match the application's use of event.code for
language-independent keyboard shortcut handling.

tests-ui/tests/services/keybindingService.escape.test.ts

@@ -12,7 +12,7 @@ import {
 } from '@/stores/keybindingStore'
 
 // Mock stores
-vi.mock('@/stores/settingStore', () => ({
+vi.mock('@/platform/settings/settingStore', () => ({
   useSettingStore: vi.fn(() => ({
     get: vi.fn(() => [])
   }))