refactor: Remove LabelingFlow/ContextMenu services and reimplement on top of the Dialog service #1264 (#1292)

* Remove ContextMenu and Labelling services and provider to use DialogService directly

* Refactor init to display labelling

* Cleanup labelling flow in measurements init

* Cleanup viewer imports

* Add classname to toolcontextmenu

* Add error message

platform/ui/src/components/contextMenu/ContextMenu.js

@@ -0,0 +1,27 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import './ContextMenu.css';
+
+const ContextMenu = ({ items, onClick }) => {
+  return (
+    <div className="ContextMenu">
+      <ul>
+        {items.map((item, index) => (
+          <li key={index}>
+            <button className="form-action" onClick={() => onClick(item)}>
+              <span key={index}>{item.label}</span>
+            </button>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+};
+
+ContextMenu.propTypes = {
+  items: PropTypes.array.isRequired,
+  onClick: PropTypes.func.isRequired,
+};
+
+export default ContextMenu;