Fixes error when you have multiple parameters in a url

This PR fixes the error in #1170 allowing you to have urls with multiple parameters

@@ -97,8 +97,13 @@ class ParseRouteTree {
 
   Map<String, String> _parseParams(String path, PathDecoded routePath) {
     final params = <String, String>{};
+    var idx = path.indexOf('?');
+    if (idx > -1) {
+      path = path.substring(0, idx);
+      final uri = Uri.tryParse(path);
+      params.addAll(uri.queryParameters);
+    }
     Match paramsMatch = routePath.regex.firstMatch(path);
-
     for (var i = 0; i < routePath.keys.length; i++) {
       var param = Uri.decodeQueryComponent(paramsMatch[i + 1]);
       params[routePath.keys[i]] = param;