Use refresh instead of visiting the current page

This way it's more obvious what's going on.

Note that, in this case, the expectations were **not** true before
visiting the page, so we aren't fixing a flaky test.

spec/system/management/users_spec.rb

@@ -86,7 +86,7 @@ describe "Users" do
 
     expect(page).to have_content "User account deleted."
 
-    visit management_document_verifications_path
+    refresh
     fill_in "document_verification_document_number", with: "12345678Z"
     click_button "Check document"