Translation related patches

[ghost]

data: Mark release descriptions as untranslatable

GNOME automatically excludes release descriptions on Damned Lies (GNOME Translation Platform). It's a good practice to follow the GNOME way.

This can streamline the translation process, allowing translators to focus their efforts on more critical and user-facing aspects of the application.

data: update the POTFILES

• Add missing files

data: update the POT file

• Add new strings
• Remove unused strings

Update Turkish translation

appdata: Update appdata

• Add translation tag
• Add bugtracker, vcs-browser and translate URLs

[yakushabb]

I closed my old account and it was closed automatically. I can create another PR if you need.

@SalaniLeo