[Discover] Unskip and improve functional doc_table tests (#82430)

Author: kertal

test/functional/apps/discover/_doc_table.ts

@@ -43,14 +43,11 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
       // and load a set of makelogs data
       await esArchiver.loadIfNeeded('logstash_functional');
       await kibanaServer.uiSettings.replace(defaultSettings);
+      await PageObjects.timePicker.setDefaultAbsoluteRangeViaUiSettings();
       log.debug('discover doc table');
       await PageObjects.common.navigateToApp('discover');
     });
 
-    beforeEach(async function () {
-      await PageObjects.timePicker.setDefaultAbsoluteRange();
-    });
-
     it('should show the first 50 rows by default', async function () {
       // with the default range the number of hits is ~14000
       const rows = await PageObjects.discover.getDocTableRows();
@@ -68,6 +65,7 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
 
       const finalRows = await PageObjects.discover.getDocTableRows();
       expect(finalRows.length).to.be.below(initialRows.length);
+      await PageObjects.timePicker.setDefaultAbsoluteRange();
     });
 
     it(`should load up to ${rowsHardLimit} rows when scrolling at the end of the table`, async function () {