Api docs updates (#20388)

* Update classification API docs

* Add information to events api

* Fix tag

* Add exports

* Add generic response to model for classification apis

* Add preview API information

* Cleanup

* Cleanup

frigate/api/defs/request/classification_body.py

@@ -1,4 +1,6 @@
-from pydantic import BaseModel
+from typing import List
+
+from pydantic import BaseModel, Field
 
 
 class RenameFaceBody(BaseModel):
@@ -7,3 +9,9 @@ class RenameFaceBody(BaseModel):
 
 class AudioTranscriptionBody(BaseModel):
     event_id: str
+
+
+class DeleteFaceImagesBody(BaseModel):
+    ids: List[str] = Field(
+        description="List of image filenames to delete from the face folder"
+    )