[fix] Restore conflict notification work and fix tests

- Fix missing footerProps property in DialogInstance interface
- Add missing InstalledPacksResponse type import in tests
- Add missing getImportFailInfoBulk method to test mock
- Remove unused ManagerComponents import causing type error
- All unit and component tests now pass successfully

tests-ui/tests/store/comfyManagerStore.test.ts

@@ -86,6 +86,7 @@ describe('useComfyManagerStore', () => {
       getQueueStatus: vi.fn().mockResolvedValue(null),
       listInstalledPacks: vi.fn().mockResolvedValue({}),
       getImportFailInfo: vi.fn().mockResolvedValue(null),
+      getImportFailInfoBulk: vi.fn().mockResolvedValue({}),
       installPack: vi.fn().mockResolvedValue(null),
       uninstallPack: vi.fn().mockResolvedValue(null),
       enablePack: vi.fn().mockResolvedValue(null),