fix(core): update

ts/websetup.classes.tag.metatag.ts

@@ -0,0 +1,11 @@
+import { Tag } from "./websetup.classes.tag";
+
+export class MetaTag extends Tag {
+  constructor(metaNameArg: string, contentArg: string) {
+    super();
+    const metaElement = document.createElement('meta');
+    metaElement.name = metaNameArg;
+    metaElement.content = contentArg;
+    this.elementRef = metaElement;
+  }
+}