Bug 41604 made every page do a bit more work when it loads. This
Selenium test didn't wait for that work to finish before typing into
the search box, so sometimes it searched too early and got the wrong
results.
This adds a short wait after each page load so the test only searches
once the page is actually ready.
Introduced by: Bug 41604: Save user decision per column when visibility changes
Test plan:
prove t/db_dependent/selenium/patrons_search.t
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Signed-off-by: Pedro Amorim <pedro.amorim@openfifth.co.uk>
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