Schema.org improvements

Allow Block `schemaOrg()` to return null so logic can be added
Limit depth of components to check for schema to stop everything being returned
Configure with: `storyblok.schema_org_depth`

config/storyblok.php

@@ -218,4 +218,15 @@
     |
     */
     'date_format' => 'H:i:s j F Y',
+
+    /*
+    |--------------------------------------------------------------------------
+    | How deep to go when creating page schema.org data
+    |--------------------------------------------------------------------------
+    |
+    | As you may be nesting many blocks and linking to other stories, this
+    | you may want to limit the depth of the schema.org data returned
+    |
+    */
+    'schema_org_depth' => 5,
 ];

src/Traits/SchemaOrg.php

@@ -20,8 +20,8 @@ protected function initSchemaOrg(): void
 				$page = $this->page();
 			}
 
-			if ($page) {
-				$this->add($page);
+			if ($page && count($this->_componentPath) <= config('storyblok.schema_org_depth')) {
+				$this->addschemaOrg($page);
 			}
 		}
 
@@ -48,12 +48,14 @@ public function schemaOrgScript(): string
 	 *
 	 * @param $page
 	 */
-	private function add($page): void
+	protected function addschemaOrg($page): void
 	{
 		$currentSchemaOrg = $page->meta('schema_org');
 
-		$currentSchemaOrg[] = $this->schemaOrg();
+        if ($schema = $this->schemaOrg()) {
+            $currentSchemaOrg[] = $schema;
+        }
 
 		$page->replaceMeta('schema_org', $currentSchemaOrg ?? []);
 	}
-}
+}