There seems to be some display problem with the close button in the localization dialog. See attached image.
This also applies to other languages, e.g. French. See screenshot (Translation Assistence Plugin 1.12 on Jenkins 1.593 viewed with current Firefox and Chrome).
Other example: English (Translation Assistence Plugin 1.11 on Jenkins 1.593 viewed with current Firefox and Chrome).
Layout is broken since Jenkins 1.572 (see screenshots 1.571 vs 1.572). In this release, layout was heavily reworked.
I will ask tfennelly to have a look at this issue.
Any (planned) progress on this?
This is in the translation-plugin, moving issue to that component.