FIX GraphQL4 config, add table names to pages

_config/graphql.yml

@@ -23,6 +23,7 @@ SilverStripe\Control\Director:
 SilverStripe\GraphQL\Schema\Schema:
   schemas:
     frameworktest:
+      config:
         modelConfig:
           type_mapping:
             SilverStripe\FrameworkTest\Model\Company: Company

code/multitab-validation/MultiTabPage.php

@@ -15,6 +15,8 @@ if (!class_exists(Page::class)) {
  */
 class MultiTabPage extends Page
 {
+    private static $table_name = 'MultiTabPage';
+
     private static $db = [
         'SecondTabFirstField' => 'Varchar(50)',
         'ThirdTabFirstField' => 'Varchar(50)',

code/multitab-validation/SingleTabPage.php

@@ -14,6 +14,8 @@ if (!class_exists(Page::class)) {
  */
 class SingleTabPage extends Page
 {
+    private static $table_name = 'SingleTabPage';
+
     public function getCMSValidator()
     {
         return new RequiredFields([