feat: Add support for Frigate reviews / detections [initial PR] (#2315)

- Add support for Frigate reviews / detections.
 - Add support for GenAI metadata.
- Significant internal refactor to more flexible "UnifiedQuery" to allow
mixing cameras with simple metadata and review metadata (e.g. a timeline
view of a Frigate camera with reviews, and a Reolink camera with simple
metadata).
 - Add support for folder media as camera media.

There are a few more PRs to commit prior to this going live, but
commiting this for now due to the scale of the change.

BREAKING CHANGE: `media_type` and `events_type` are retired under
`live`, `viewer` and `timeline` configuration sections, instead media
type is associated (once) with the camera under `media`.

tests/components-lib/thumbnail/feature/controller.test.ts

@@ -115,7 +115,7 @@ describe('ThumbnailFeatureController', () => {
 
     it('should not set subtitle on folder media', () => {
       const controller = new ThumbnailFeatureController();
-      const itemWithThumbnail = new ViewFolder(createFolder(), {
+      const itemWithThumbnail = new ViewFolder(createFolder(), [], {
         title: 'Test Folder',
       });
 
@@ -152,7 +152,7 @@ describe('ThumbnailFeatureController', () => {
   });
 
   describe('should set thumbnail', () => {
-    it('should set brand thumbnail', () => {
+    it('should set placeholder thumbnail', () => {
       const controller = new ThumbnailFeatureController();
       const itemWithThumbnail = new TestViewMedia({
         thumbnail: 'https://brands.home-assistant.io//amcrest/icon.png',
@@ -163,7 +163,7 @@ describe('ThumbnailFeatureController', () => {
       expect(controller.getThumbnail()).toBe(
         'https://brands.home-assistant.io/brands/_/amcrest/icon.png',
       );
-      expect(controller.getThumbnailClass()).toBe('brand');
+      expect(controller.getThumbnailClass()).toBe('placeholder');
     });
 
     it('should set other thumbnail', () => {