[PS-2841] remove SweetAlert2 dependency (#6191)

* remove swal from app.component

* remove dep

* remove unused swal css

apps/browser/webpack.config.js

@@ -213,10 +213,6 @@ const mainConfig = {
     extensions: [".ts", ".js"],
     symlinks: false,
     modules: [path.resolve("../../node_modules")],
-    alias: {
-      sweetalert2: require.resolve("sweetalert2/dist/sweetalert2.js"),
-      "#sweetalert2": require.resolve("sweetalert2/src/sweetalert2.scss"),
-    },
     fallback: {
       assert: false,
       buffer: require.resolve("buffer/"),