update_weblate_git: langs.json &isWikiPo
I made some small mistakes to fix
Feature #16449, and the merge stategy does not work. Those two fixes should now make it working in the end.
It now loads correctly langs.json from
/var/lib/weblate/scripts/config/langs.json and fixes:
FileNotFoundError: [Errno 2] No such file or directory: '/var/lib/weblate/scripts/langs.json'
also fixing the issue, that isWikiPo does not detect po files in src/wiki.