Swap swagger-ui with swagger-ui-dist (#13777)

* Swap swagger-ui with swagger-ui-dist

The prebuilt version of swagger-ui is identical to the regular one but
brings the benefit of faster webpack compilation and less npm
dependencies so it npm installs will speed up too.

* use bundle file directly

package.json

@@ -36,7 +36,7 @@
     "postcss": "8.1.10",
     "raw-loader": "4.0.2",
     "sortablejs": "1.12.0",
-    "swagger-ui": "3.37.2",
+    "swagger-ui-dist": "3.37.2",
     "terser-webpack-plugin": "4.2.3",
     "tributejs": "5.1.3",
     "vue": "2.6.12",

web_src/js/standalone/swagger.js

@@ -1,5 +1,5 @@
-import SwaggerUI from 'swagger-ui';
+import SwaggerUI from 'swagger-ui-dist/swagger-ui-es-bundle.js';
-import 'swagger-ui/dist/swagger-ui.css';
+import 'swagger-ui-dist/swagger-ui.css';
 
 window.addEventListener('load', async () => {
   const url = document.getElementById('swagger-ui').dataset.source;