Refactor event cleanup to consider review severity (#15415)

* Keep track of objects max review severity

* Refactor cleanup to split snapshots and clips

* Cleanup events based on review severity

* Cleanup review imports

* Don't catch detections

frigate/api/defs/query/review_query_parameters.py

@@ -3,7 +3,7 @@ from typing import Union
 from pydantic import BaseModel
 from pydantic.json_schema import SkipJsonSchema
 
-from frigate.review.maintainer import SeverityEnum
+from frigate.review.types import SeverityEnum
 
 
 class ReviewQueryParams(BaseModel):

frigate/api/defs/response/review_response.py

@@ -3,7 +3,7 @@ from typing import Dict
 
 from pydantic import BaseModel, Json
 
-from frigate.review.maintainer import SeverityEnum
+from frigate.review.types import SeverityEnum
 
 
 class ReviewSegmentResponse(BaseModel):