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

frigate/app.py

@@ -39,6 +39,7 @@ from frigate.const import (
     MODEL_CACHE_DIR,
     RECORD_DIR,
     SHM_FRAMES_VAR,
+    THUMB_DIR,
 )
 from frigate.data_processing.types import DataProcessorMetrics
 from frigate.db.sqlitevecq import SqliteVecQueueDatabase
@@ -105,6 +106,7 @@ class FrigateApp:
         dirs = [
             CONFIG_DIR,
             RECORD_DIR,
+            THUMB_DIR,
             f"{CLIPS_DIR}/cache",
             CACHE_DIR,
             MODEL_CACHE_DIR,