thumbnail and preview links cannot be translated

This is bug is present in all version of the image module.

Even though we can translate Preview and Thumbnail, all links showing below images are hard coded to Preview and Thumbnail.

The module author should separate the link label from the actual link.

Currently:
<li class="image_size_preview"><a href="/images/myimage?size=preview" class="image_size_preview active">Preview</a></li>

Expected:
<li class="image_size_preview"><a href="/images/myimage?size=preview" class="image_size_preview active">t(Preview_translated)</a></li>