[Admin] Add extra routes options to menu routers (#128)

| Q               | A
| --------------- | -----
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Related tickets | n/a
| License         | MIT

Author: TheMilek

src/Menu/ContentManagementMenuBuilder.php

@@ -34,34 +34,54 @@ public function buildMenu(MenuBuilderEvent $menuBuilderEvent): void
         $cmsRootMenuItem
             ->addChild('collections', [
                 'route' => 'sylius_cms_admin_collection_index',
+                'extras' => ['routes' => [
+                    ['route' => 'sylius_cms_admin_collection_create'],
+                    ['route' => 'sylius_cms_admin_collection_update'],
+                ]],
             ])
             ->setLabel('sylius_cms.ui.collections')
         ;
 
         $cmsRootMenuItem
             ->addChild('templates', [
                 'route' => 'sylius_cms_admin_template_index',
+                'extras' => ['routes' => [
+                    ['route' => 'sylius_cms_admin_template_create'],
+                    ['route' => 'sylius_cms_admin_template_update'],
+                ]],
             ])
             ->setLabel('sylius_cms.ui.content_templates')
         ;
 
         $cmsRootMenuItem
             ->addChild('pages', [
                 'route' => 'sylius_cms_admin_page_index',
+                'extras' => ['routes' => [
+                    ['route' => 'sylius_cms_admin_page_create'],
+                    ['route' => 'sylius_cms_admin_page_update'],
+                ]],
             ])
             ->setLabel('sylius_cms.ui.pages')
         ;
 
         $cmsRootMenuItem
             ->addChild('blocks', [
                 'route' => 'sylius_cms_admin_block_index',
+                'extras' => ['routes' => [
+                    ['route' => 'sylius_cms_admin_block_create'],
+                    ['route' => 'sylius_cms_admin_block_update'],
+                ]],
             ])
             ->setLabel('sylius_cms.ui.blocks')
         ;
 
         $cmsRootMenuItem
             ->addChild('media', [
                 'route' => 'sylius_cms_admin_media_index',
+                'extras' => ['routes' => [
+                    ['route' => 'sylius_cms_admin_media_create'],
+                    ['route' => 'sylius_cms_admin_media_update'],
+                ]],
             ])
             ->setLabel('sylius_cms.ui.media')
         ;