feat: Notification provider and service (#1703)

* Create basic structure for Viewport dialog provier and Dialog component

* Implementation of a UIViewportDialogService

* Update viewportDialogProvider docz

* Create example of use of UIViewportDialogService

platform/ui/src/components/Dialog/Dialog.jsx

@@ -0,0 +1,12 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+const Dialog = ({ children }) => {
+  return <div className="absolute top-0 left-0">{children}</div>;
+};
+
+Dialog.propTypes = {
+  children: PropTypes.node,
+};
+
+export default Dialog;