UI tweaks (#23492)

* slightly darken bg-card

* change menu label

* move snapshot retain out of advanced fields

* add new ui options for collapsibles

* backend title and description

* remove unused snapshot retention field

* update reference config

* remove further references to snapshots retain.mode

frigate/config/camera/camera.py

@@ -100,8 +100,8 @@ class CameraConfig(FrigateBaseModel):
         description="Settings for face detection and recognition for this camera.",
     )
     ffmpeg: CameraFfmpegConfig = Field(
-        title="FFmpeg",
-        description="FFmpeg settings including binary path, args, hwaccel options, and per-role output args.",
+        title="Streams (FFmpeg)",
+        description="Camera stream inputs and FFmpeg options, including binary path, args, hwaccel, and per-role output args.",
     )
     live: CameraLiveConfig = Field(
         default_factory=CameraLiveConfig,

frigate/config/camera/snapshots.py

@@ -3,7 +3,6 @@ from typing import Optional
 from pydantic import Field
 
 from ..base import FrigateBaseModel
-from .record import RetainModeEnum
 
 __all__ = ["SnapshotsConfig", "RetainConfig"]
 
@@ -14,11 +13,6 @@ class RetainConfig(FrigateBaseModel):
         title="Default retention",
         description="Default number of days to retain snapshots.",
     )
-    mode: RetainModeEnum = Field(
-        default=RetainModeEnum.motion,
-        title="Retention mode",
-        description="Mode for retention: all (save all segments), motion (save segments with motion), or active_objects (save segments with active objects).",
-    )
     objects: dict[str, float] = Field(
         default_factory=dict,
         title="Object retention",