feat: toastContainer stub (#338)

* feat: toastContainer stub

* Update src/lightning-stubs/toastContainer/toastContainer.js

Co-authored-by: Austin Andrews <[email protected]>

* Update toastContainer.js

Removed unused `config` var to avoid linting error.

---------

Co-authored-by: Austin Andrews <[email protected]>

Author: pozil

src/lightning-stubs/toastContainer/toastContainer.js

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2023, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+import { LightningElement, api } from 'lwc';
+
+export default class ToastContainer extends LightningElement {
+    static instance() {}
+    @api containerPosition;
+    @api maxToasts;
+    @api toastPosition;
+    @api close() {}
+}