Translation server: have check/fix script for weblate components

Sometimes a script or a human make some mistakes and we have to update the Weblate components acorrding to the git repository. That means the script should do:

• Remove additional languages files from git, if those were forgotten to delete.
• Add additional languages files in git, if the {DEFAULTLANG}.po file exists.
• Scan through the list of Weblate components and add missing components and delete leftovers.

Feature Branch: https://salsa.debian.org/hefee/puppet-tails/tree/hefee/dev/translation-server

Parent Task: #10034 (closed)

Related issues

• Blocks #16521 (closed)

Original created by @Hefee on 16524 (Redmine)