Fix warnings and update tracability

src/lib/components/library/GenericGenreBrowser.svelte

@@ -8,7 +8,7 @@
   import ResultsCounter from "$lib/components/common/ResultsCounter.svelte";
   import CachedImage from "$lib/components/common/CachedImage.svelte";
   import { useServerReachabilityReload } from "$lib/composables/useServerReachabilityReload";
-  import type { Genre, MediaItem } from "$lib/api/types";
+  import type { Genre, MediaItem, ItemType } from "$lib/api/types";
 
   /**
    * Generic genre browser supporting Movies, Music Albums, and TV Series
@@ -20,7 +20,7 @@
    */
 
   export interface GenreConfig {
-    itemTypes: string[]; // ["Movie"] or ["MusicAlbum"] or ["Series"]
+    itemTypes: ItemType[]; // ["Movie"] or ["MusicAlbum"] or ["Series"]
     title: string; // "Movie Genres" or "Genres" or "TV Genres"
     backPath: string; // "/library" or "/library/music"
     genreIcon: string; // SVG path for genre icon