Fix shadowed settings translations in profile menu

Closes #844 (closed)

What does this MR do?

Asks for correct translation on the client, removes a dupe server-side translation key

How confident are you it won't break things if deployed?

100%.

How to test

1. Open the profile menu by clicking on the profile picture while being on a "settings"-page
2. Open that menu by clicking on the profile picture while being on any other page

The menu items should be identical.

Screenshots (if applicable)

See #844 (closed) for pictures.

Checklist

• no test added, due to translation system
• no unrelated changes
• asked someone for a code review
• joined #foodsharing-beta channel at https://slackin.yunity.org
• no CHANGELOG entry needed
• Once your MR has been merged, you are responsible to update the #foodsharing-beta Slack channel about what has been changed here. They will test your work in different browsers, roles or other settings