Fix test import pattern to match actual usage in App.tsx

[Copilot]

The test file imported updateStyles as a named export while App.tsx uses a namespace import, creating a mismatch that could lead to false positives.

Changes

• Updated App.test.tsx to use namespace import pattern: import * as StyleConstants
• Updated mock reference from jest.mocked(updateStyles) to jest.mocked(StyleConstants.updateStyles)

Context

// App.tsx (actual usage)
import * as StyleConstants from "../Common/StyleConstants";
StyleConstants.updateStyles();

// App.test.tsx (was)
import { updateStyles } from "../Common/StyleConstants";

// App.test.tsx (now)
import * as StyleConstants from "../Common/StyleConstants";

Test now accurately reflects production code usage pattern.

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.