Initialize main.js and main.scss files with necessary imports for jQuery, Bootstrap, and Toastr

src/assets/js/main.js

@@ -0,0 +1,3 @@
+import $ from 'jquery';
+import 'bootstrap';
+import toastr from 'toastr';

src/assets/sass/main.scss

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+
+@import "bootstrap";
+@import "toastr";
+
+