✅ (freeze.spec.ts): add test case for clicking on "Close" button in the modal to ensure proper functionality

Author: Cristhianzl

src/frontend/tests/core/features/freeze.spec.ts

@@ -226,6 +226,8 @@ test(
       .getByPlaceholder("Empty")
       .textContent();
 
+    await page.getByText("Close").last().click();
+
     await page.getByTestId("btn-close-modal").click();
 
     await page.getByTestId("textarea_str_input_value").first().fill(",");