log server response in screenshot tests

Author: Michael Büßemeyer

frontend/javascripts/test/puppeteer/dataset_rendering.screenshot.ts

@@ -116,15 +116,18 @@ test.before("Retrieve dataset ids", async () => {
         const options = getDefaultRequestOptions(URL);
         const url = `${URL}/api/datasets/disambiguate/sample_organization/${datasetName}/toId`;
         const response = await fetch(url, options);
-        const { id } = await response.json();
+        const text = await response.text();
+        console.error(`Dataset ID for ${datasetName}: ${text}`);
+        const { id } = JSON.parse(text);
+        console.error(`Dataset ID for ${datasetName}: ${id}`);
         datasetNameToId[datasetName] = id;
         return true;
       },
       () => {},
     );
   }
 });
-test("Dataset IDs were retrieved successfully", (t) => {
+test.serial("Dataset IDs were retrieved successfully", (t) => {
   for (const datasetName of datasetNames) {
     t.truthy(datasetNameToId[datasetName], `Dataset ID not found for "${datasetName}"`);
   }