Error handling + fixed pin connecting

src/modules/core/components/App.tsx

@@ -1,10 +1,26 @@
 import React from 'react'
 import '../styles/reset'
 import './App.scss'
+import 'react-toastify/dist/ReactToastify.css'
 import Canvas from './Canvas'
+import { ToastContainer } from 'react-toastify'
 
 const App = () => {
-    return <Canvas />
+    return (
+        <>
+            <ToastContainer
+                position="top-left"
+                autoClose={5000}
+                hideProgressBar={false}
+                newestOnTop={false}
+                closeOnClick
+                rtl={false}
+                draggable
+                pauseOnHover
+            />
+            <Canvas />
+        </>
+    )
 }
 
 export default App