test(ContourSegNavigation): Add e2e tests for contour segmentation navigation (#5834)

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Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

tests/utils/assertions.ts

@@ -61,3 +61,7 @@ export async function assertBoundingBoxIsContainedWithin({
     `${innerBoxLabel} bottom edge should be within ${outerBoxLabel}`
   ).toBeLessThanOrEqual(outerBox.y + outerBox.height);
 }
+
+export async function expectRowSelected(rowObject) {
+  await expect(rowObject.locator).toContainClass('bg-popover');
+}