fix: Reolink metadata should not reject media with labels (#1900)

- Related to: #1870

src/camera-manager/browse-media/media.ts

@@ -57,7 +57,7 @@ class BrowseMediaEventViewMedia extends ViewMedia implements EventViewMedia {
     return this._browseMedia.thumbnail;
   }
   public getWhat(): string[] | null {
-    return null;
+    return this._browseMedia._metadata?.what ?? null;
   }
   public getScore(): number | null {
     return null;

src/camera-manager/browse-media/types.ts

@@ -2,4 +2,5 @@ export interface BrowseMediaMetadata {
   cameraID: string;
   startDate: Date;
   endDate: Date;
+  what?: string[];
 }