Accommodation cards read the place from page-local state, so a new thumbnail
only showed up there after a reload. place:updated now asks the planner to
reload them, but only when the image actually changed - renaming a place must
not trigger a refetch.
The inspector shows the stored credit under the avatar. Crediting a CC BY-SA
picture only in the moment it is chosen is not enough; the obligation travels
with the picture.
Also lets a GIF hero through to the PDF. Uploads accept gif, the PDF extension
check did not, so one silently fell back to the category icon.
Maurice