Do not use history.goBack() to trigger navigation (#34956)

- Some tests had a redundant initial route just so that there is
  an entry in history we can go back to. This caused NewItemMenu to
  be redundantly rendered, which caused race conditions in the entity
  framework. We do not need history.goBack(), we can use history.push()
  but we need an extra, safe route we can try to navigate to.
- @see https://metaboat.slack.com/archives/C057T1QTB3L/p1697183111294489
- @see https://metaboat.slack.com/archives/C5XHN8GLW/p1697811520881169
- @see https://github.com/metabase/metabase/pull/34661