684-PR-fix_wrong_icons_in_popupmenu

What does this MR do?

At the popupmenu on the dashboard (Anfrage gestellt bei Betrieb) are wrong icons. This MR changes the wrong icons to awesome fontawesome icons

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

100%

Checklist

• added a test, or explain why one is not needed/possible... have a look at the screenshots
• no unrelated changes
• asked someone for a code review
• joined #foodsharing-beta channel at https://slackin.yunity.org
• added an entry to CHANGELOG.md (description, merge request link, username(s))