[Reporting/Share Menu] use browser module for url-resolving features (e…

…lastic#177956)

## Summary

Potentially fixes an issue where a custom build of the Reporting plugin
doesn't use the right shim for URL-resolving functionality.

### Checklist

Delete any items that are not applicable to this PR.

- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [ ] This was checked for [cross-browser
compatibility](https://www.elastic.co/support/matrix#matrix_browsers)

packages/kbn-reporting/public/share/share_context_menu/reporting_panel_content/reporting_panel_content.tsx

@@ -7,7 +7,6 @@
  */
 
 import React, { Component, ReactElement } from 'react';
-import url from 'url';
 
 import { CSV_REPORT_TYPE, CSV_REPORT_TYPE_V2 } from '@kbn/reporting-export-types-csv-common';
 import { PDF_REPORT_TYPE, PDF_REPORT_TYPE_V2 } from '@kbn/reporting-export-types-pdf-common';
@@ -88,7 +87,7 @@ class ReportingPanelContentUi extends Component<Props, State> {
       props.reportType,
       this.props.apiClient.getDecoratedJobParams(this.props.getJobParams(true))
     );
-    return url.resolve(window.location.href, relativePath);
+    return new URL(relativePath, window.location.href).toString();
   };
 
   public componentDidUpdate(_prevProps: Props, prevState: State) {