refactor(tests): update viewport page object usage to async and update all effected tests (#5927)

tests/TMTVCSVReport.spec.ts

@@ -13,7 +13,8 @@ test('should create and download the TMTV CSV report correctly', async ({
   await rightPanelPageObject.tmtvPanel.addSegmentationButton.click();
   await rightPanelPageObject.tmtvPanel.tools.brush.click();
 
-  await viewportPageObject.getById('ctAXIAL').normalizedClickAt([{ x: 0.5, y: 0.5 }]);
+  const viewport = await viewportPageObject.getById('ctAXIAL');
+  await viewport.normalizedClickAt([{ x: 0.5, y: 0.5 }]);
 
   await page.waitForTimeout(5000);