We migrated the part of the import to use DataHandler.
We didn't invest too much time as budgets are low.
Still the bugs are covered with tests and fixed.
Relates: #10782
They sometimes use a different separator.
The code is adjusted to always use same separator and precision.
That will prevent the same location from showing up multiple times due
to different latitude and longitude values.
* Set ``alternative`` to the ``description`` if available.
* Set ``creator_tool`` to the "destination.one".
* Set ``source`` to the URL of the fetched image.
