Bug fix for map url

Closes #1878 (closed) and https://foodsharing-ev.sentry.io/issues/5084510481/

What does this MR do?

Fixed the error that was introduced in !3195 (merged)

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

very sure

Links to related issues

How to test

1. Checkout branch locally
2. Login as foodsaver
3. There should be no errors in the browser console
4. The link to the map should appear in the top bar again

Screenshots (if applicable)

Checklist

• added a test, or explain why one is not needed/possible...
• no unrelated changes
• asked someone for a code review
• set a "for:" label to indicate who will be affected by this change
• added to the next milestone (see https://gitlab.com/foodsharing-dev/foodsharing/-/milestones, unless it has a "for:Dev" label)
• added an entry to CHANGELOG.md
• added a short text in the release notes to /release-notes/YYYY-MM.md
• Once your MR has been merged, you are responsible to create a testing issue in the Beta Testing forum: https://foodsharing.de/region?bid=734&sub=forum. Please change the MRs label to "state:Beta testing".
  • Consider writing a detailed description in German.
  • Describe in a few sentences, what should be tested from a user perspective.
  • Also mention different settings (e.g. different browsers, roles, ...) how this change can be tested.
  • Be aware, that also non technical people should understand.