fix: stream test in safari (#2059)

Co-authored-by: Anton Standrik <[email protected]>

Author: astandrik

tests/suites/tenant/queryEditor/queryEditor.test.ts

@@ -145,11 +145,14 @@ test.describe('Test Query Editor', async () => {
 
     test('Streaming query shows some results and banner when stop button is clicked', async ({
         page,
-        browserName,
     }) => {
-        // For some reason Safari handles large numbers list bad in Safari
-        // Will be investigated here https://github.com/ydb-platform/ydb-embedded-ui/issues/1989
-        test.skip(browserName === 'webkit', 'This test is skipped in Safari');
+        // Safari in playwright has problem with painting an array
+        // of million values for frequently appearing rows.
+        // But still need them for heavy responses to simulate
+        // long running queries. Setting their display to none resolves the issue.
+        await page.addStyleTag({
+            content: '.ydb-query-result-sets-viewer__result tr td:nth-child(3n) { display: none; }',
+        });
         const queryEditor = new QueryEditor(page);
         await toggleExperiment(page, 'on', 'Query Streaming');