Fix some Selenium tests possible fails

Signed-off-by: Maurício Meneghini Fauth <mauricio@fauth.dev>

test/selenium/Database/OperationsTest.php

@@ -117,6 +117,7 @@ class OperationsTest extends TestBase
 
         $this->reloadPage();// Reload or scrolling will not work ..
         $new_db_name = $this->databaseName . 'copy';
+        $this->scrollIntoView('renameDbNameInput');
         $this->byCssSelector('form#copy_db_form input[name=newname]')
             ->sendKeys($new_db_name);
 

test/selenium/ExportTest.php

@@ -154,6 +154,7 @@ class ExportTest extends TestBase
         if ($type === 'table') {
             $this->scrollIntoView('radio_allrows_0');
             $this->byCssSelector('label[for=radio_allrows_0]')->click();
+            $this->scrollIntoView('limit_to');
             $this->byName('limit_to')->clear();
             $this->byName('limit_to')->sendKeys('1');
         }