Fix disappearing food share point picture
Closes #727 (closed)
What does this MR do?
Adds the previously uploaded picture to the food share point edit form. When editing a point without changing the picture, it won't disappear anymore.
How confident are you it won't break things if deployed?
Utils is only used for food share points and blog entries and both seems to work.
- added a test, or explain why one is not needed/possible...
- 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))
- 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