Add in translation function around newly converted statusBounce messages

[seamuslee001]

Overview

This adds in ts function for some strings that weren't translated but now as they are status bounces should be.

Before

Strings not translated

After

Strings translated

ping @yashodha @eileenmcnaughton i left this one https://github.com/civicrm/civicrm-core/pull/15770/files#diff-00a10e9176c4318681b5b18e5e9cc16cR268 alone as it seemed to be not to be tsed as per the comment in L267

[civibot]

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