Update input-tiny-mce.element.ts

Use super for the getter as well, just to ensure right separation of concerns.

src/Umbraco.Web.UI.Client/src/packages/core/components/input-tiny-mce/input-tiny-mce.element.ts

@@ -53,7 +53,7 @@ export class UmbInputTinyMceElement extends FormControlMixin(UmbLitElement) {
 	}
 	
 	get value(): FormDataEntryValue | FormData {
-		return this._value;
+		return super.value;
 	}
 
 	@query('#editor', true)