Remove thumb from database field (#16647)

* Remove thumbnail from dict

* Create thumbnail diectory

* Cleanup handling of tracked object images

* Make thumbnail optional

* Handle cases where thumbnail is used

* Expand options for thumbnail api

* Fix up the does not exist condition

* Remove absolute usages of thumbnails

* Write thumbnails for external events

* Reduce webp quality

* Use webp everywhere in frontend

* Formatting

* Always consider all events when re-indexing

* Add thumbnail deletion and cleanup path management

* Cleanup imports

* Rename def

* Don't save thumbnail for every object

* Correct event count

* Use correct function

* Include thumbnail in query

* Remove unused

* Fix requiring exception

web/src/components/overlay/detail/SearchDetailDialog.tsx

@@ -511,7 +511,7 @@ function ObjectDetailsTab({
                 : undefined
             }
             draggable={false}
-            src={`${apiHost}api/events/${search.id}/thumbnail.jpg`}
+            src={`${apiHost}api/events/${search.id}/thumbnail.webp`}
           />
           {config?.semantic_search.enabled && search.data.type == "object" && (
             <Button