Fixed spelling and grammar in fsbetrieb
What does this MR do?
It corrects certain errors in spelling, phrasing or grammar for all pages treating our stores.
How confident are you it won't break things if deployed?
- added a test, or explain why one is not needed/possible... (only string changes. Nothing to test.)
- 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))