add missing translation in menu

[DanielFrantes]

Motivation

Because I want to help. And this is perfect first issue. closes #2213

Change description

tanslate the opinion.

Reviewer checklist

• PR addresses a single concern.
• The PR has no duplicates (please search among the Pull Requests before creating one)
• PR title and description are properly filled.
• Docs have been added / updated (for bug fixes / features)

[CLAassistant]

All committers have signed the CLA.

[per1234]

Thanks for taking the time to submit a pull request @danik292.

This project uses a base locale of en. The base localization data is defined by the strings passed to nls.localize. This data is then uploaded to the "Arduino IDE 2.0" project on the Transifex localization platform, where it is localized to each of the other 17 supported locales.

So changing the base data string from the correct English to German is not the correct way to fix this problem and we will not be able to accept this pull request. I provide some information on the cause of the problem here: #2213 (comment)

If you are interested in contributing to the Arduino IDE translations, you can learn how from this guide:

https://github.com/arduino/arduino-ide/blob/main/docs/contributor-guide/translation.md#translator-guide