frontend: Add Activity to pluginLib

Author: sniok

frontend/src/plugin/__snapshots__/pluginLib.snapshot

@@ -1,4 +1,10 @@
 {
+  "Activity": {
+    "close": [Function],
+    "launch": [Function],
+    "reset": [Function],
+    "update": [Function],
+  },
   "ApiProxy": {
     "ApiError": [Function],
     "apiFactory": [Function],

frontend/src/plugin/index.ts

@@ -35,6 +35,7 @@ import * as ReactRedux from 'react-redux';
 import * as ReactRouter from 'react-router-dom';
 import * as Recharts from 'recharts';
 import semver from 'semver';
+import { Activity } from '../components/activity/Activity';
 import { runCommand } from '../components/App/runCommand';
 import { themeSlice } from '../components/App/themeSlice';
 import * as CommonComponents from '../components/common';
@@ -100,6 +101,7 @@ window.pluginLib = {
   Plugin,
   useTranslation,
   ...registryToExport,
+  Activity,
 };
 
 // backwards compat.