[PATCH 0 of 7] i18n: fix syntax errors detected by weblate

[Thomas De Schampheleire]

Hello,

Weblate reports a number of problems on the default branch:
https://hosted.weblate.org/projects/kallithea/kallithea/#alerts

They are all in some way caused by syntax errors in translation files.

It is unclear to me how exactly they came about.
Let's keep an eye on this in the future...

The fixes were verified with:

    find -name kallithea.po | xargs -I '{}' msgmerge --no-wrap  --previous  '{}' kallithea/i18n/kallithea.pot > /dev/null


/Thomas