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;

platform/ui/src/components/Dialog/index.js

@@ -0,0 +1,2 @@
+import Dialog from './Dialog';
+export default Dialog;

platform/ui/src/components/index.js

@@ -1,6 +1,7 @@
 import Button from './Button';
 import ButtonGroup from './ButtonGroup';
 import DateRange from './DateRange';
+import Dialog from './Dialog';
 import EmptyStudies from './EmptyStudies';
 import Icon from './Icon';
 import IconButton from './IconButton';
@@ -47,6 +48,7 @@ export {
   Button,
   ButtonGroup,
   DateRange,
+  Dialog,
   EmptyStudies,
   Icon,
   IconButton,