Update messages_de_DE.properties

[pixma140]

Updated translations for German language.

Description

I updated the translations for German language.

Closes no issue.

Checklist

• I have read the Contribution Guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas - I guess this does not apply for translations
• My changes generate no new warnings
• I have read the section Add New Translation Tags (for new translation tags only) - not checked since it is no new translation tag

[github-actions]

🚀 Translation Verification Summary

📋 Checking with the file messages_en_GB.properties from the main-branch - Checking the pr-branch

🗂️ Checking File: messages_de_DE.properties...

• Test 1 Status: ✅ Passed
• Test 2 Status: ✅ Passed

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✅ Overall Check Status: Success

[Ludy87]

Did you run the translation through Google Translate? There are strings that shouldn't be translated one-to-one in German.

[Ludy87]

There are still a few improvements, but I'll leave those up to you ;-)

[pixma140]

@Ludy87 thank you for your comments.

Did you run the translation through Google Translate? There are strings that shouldn't be translated one-to-one in German.

No, I just did the translations by myself. Your additions sound good to me, whereas mine partly sound very "steinern".

There are still a few improvements, but I'll leave those up to you ;-)

I did some more translations and edits now. I hope they suit you better. I did everything here in good faith and based on the best knowledge available to me.

edit: if you have further improvements, please let me know and enlighten me.