fix: do not re-export pathToRegexp in the ES bundle

In the ES module bundle the users may as well just import path-to-regexp themselves.

In the UMD bundle, keep things 'as-is'.

Author: Viktor Lukashov

index.polyfilled.js

@@ -1,4 +1,6 @@
 import {Router, Resolver} from './index.js';
+import * as pathToRegexp from 'path-to-regexp';
+Resolver.pathToRegexp = pathToRegexp;
 
 let isUrlAvailable, urlDocument, urlBase, urlAnchor;
 

src/resolver/resolver.js

@@ -7,7 +7,6 @@
  * LICENSE.txt file in the root directory of this source tree.
  */
 
-import * as pathToRegexp from 'path-to-regexp';
 import matchRoute from './matchRoute.js';
 import resolveRoute from './resolveRoute.js';
 import {toArray, ensureRoutes, isString, getNotFoundError, notFoundResult} from '../utils.js';
@@ -249,6 +248,4 @@ class Resolver {
   }
 }
 
-Resolver.pathToRegexp = pathToRegexp;
-
 export default Resolver;