Whisperback is only displayed in English
It seems that most WhisperBack strings are displayed in English, but they are translated in `po/*.po` and are not marked as fuzzy as in #19988. I have tried it in several languages (french, catalan and spanish) and I get the same result. For example in Spanish:

But the strings are translated in [`po/es.po`](https://gitlab.tails.boum.org/tails/tails/-/blob/stable/po/es.po?ref_type=heads):
```
#: ../config/chroot_local-includes/usr/share/whisperback/whisperback.ui.in:308
msgid "Summary"
msgstr "Resumen"
#: ../config/chroot_local-includes/usr/share/whisperback/whisperback.ui.in:337
#: ../config/chroot_local-includes/usr/share/whisperback/whisperback.ui.in:485
msgid "Bug description"
msgstr "Descripción del error"
#: ../config/chroot_local-includes/usr/share/whisperback/whisperback.ui.in:378
msgid "Help:"
msgstr "Ayuda:"
```
But as you can see in the screenshot, the strings *Summary*, *Bug description* and *Help:* (among others) are shown in English.
issue