Miscellaneous Fixes (#21193)

* Fix saving zone friendly name when it wasn't set

* Fix UTF-8 handling for Onvif

* Don't remove none directory for classes

* Lookup all event IDs for review item immediately

* Cleanup typing

* Only fetch events when review group is open

* Cleanup

* disable debug paths switch for autotracking cameras

* fix clickable birdseye

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Co-authored-by: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>

frigate/api/classification.py

@@ -710,7 +710,7 @@ def delete_classification_dataset_images(
         if os.path.isfile(file_path):
             os.unlink(file_path)
 
-    if os.path.exists(folder) and not os.listdir(folder):
+    if os.path.exists(folder) and not os.listdir(folder) and category.lower() != "none":
         os.rmdir(folder)
 
     return JSONResponse(