deal with flaky test

apps/remix-ide-e2e/src/tests/file_explorer_multiselect.test.ts

@@ -24,14 +24,13 @@ module.exports = {
       .assert.visible('.bg-secondary[data-id="treeViewLitreeViewItemcontracts/2_Owner.sol"]')
       .assert.visible('.bg-secondary[data-id="treeViewLitreeViewItemtests"]')
   },
-  'Should drag and drop multiple files in file explorer to tests folder #group1': ''+function (browser: NightwatchBrowser) {
+  'Should drag and drop multiple files in file explorer to tests folder #group1': function (browser: NightwatchBrowser) {
     const selectedElements = []
     if (browser.options.desiredCapabilities?.browserName === 'firefox') {
       console.log('Skipping test for firefox')
       browser.end()
       return;
-    }
-
+    } else {
       browser
         .click({ selector: '//*[@data-id="treeViewUltreeViewMenu"]', locateStrategy: 'xpath' })
         .click({ selector: '//*[@data-id="treeViewLitreeViewItemcontracts/1_Storage.sol"]', locateStrategy: 'xpath' })
@@ -55,6 +54,7 @@ module.exports = {
                 .perform(() => done())
             })
         })
+    }
   },
   'should drag and drop multiple files and folders in file explorer to contracts folder #group3': function (browser: NightwatchBrowser) {
     const selectedElements = []