Hide pagination if no pages

## Please summarize your question in one sentence
When using the list template, some pagination HTML is printed even when there isn't any pages available. We need some way to conditionally hide HTML when there aren't any pages.

## Other comments or remarks

We're using this HTML provided by the module, but we would like to conditionally not output the 'bbs-pager' div entirely when there aren't any pages. How would we do that?

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