Custom Menu Items (#79)

* Custom Menu Items

* update readme

* fix indentation

src/components/icons.ts

@@ -0,0 +1,12 @@
+import { lazy } from "react";
+
+export const Icons = {
+  Announcement: lazy(() => import('@mui/icons-material/Announcement')),
+  Engineering: lazy(() => import('@mui/icons-material/Engineering')),
+  HelpCenter: lazy(() => import('@mui/icons-material/HelpCenter')),
+  SupportAgent: lazy(() => import('@mui/icons-material/SupportAgent')),
+  Default: lazy(() => import('@mui/icons-material/OpenInNew')),
+  // Add more icons as needed
+};
+
+export const DefaultIcon = Icons.Default;