Avoid settings page navigating to a separate page. This fixes T199

Summary: Fixes issue with settings page navigating to another page after save. This is a temporal solution till we have a dashboard to take the user to.

Test Plan: Log in, click on workspace, navigate to Tools then select 'select site settings'. Edit either 'site name' or 'site owner' and click save. you should remain on the same page.

Reviewers: shadowhand

Reviewed By: shadowhand

Subscribers: digitalafrican, rjmackay

Maniphest Tasks: T199

Differential Revision: https://phabricator.ushahidi.com/D86