If a selenium finder takes the full wait duration to resolve, that means it has been written inefficiently. Most likely a matcher has been negated incorrectly.
This commit introduces a patch which will raise an error in this situation so that we can catch the issues while developing specs.
This commit also fixes chat's visit_thread helper. It was spinning on `has_css?(".chat-skeleton")` for the full selenium wait duration, and then returns false. That's because the thread is often already fully loaded before `has_css?` is even called. It's now updated to only look for the final expected state.
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