The HTML `id` of the tabs on the left hand side is randomized

[James-G-Hill]

When the app is run the tabs object in the HTML is given and input id similar to tabs_896697200 where the numbers are randomized between runs of the application.

This interferes with shinytest2 programmatic testing.

A workaround that works for limited periods is to add a seed parameter when calling shinytest2 AppDriver$new in a test. However, this doesn't appear to be consistent between versions of chromote being used in the background.