refactor: update image handling in Series dto to use imageUrlPrefix and JellyfinImageHelper

feature/download/src/main/java/hu/bbara/purefin/feature/download/MediaDownloadManager.kt

@@ -385,10 +385,9 @@ class MediaDownloadManager @Inject constructor(
             name = name ?: "Unknown",
             synopsis = overview ?: "No synopsis available",
             year = productionYear?.toString() ?: premiereDate?.year?.toString().orEmpty(),
-            heroImageUrl = JellyfinImageHelper.toImageUrl(
+            imageUrlPrefix = JellyfinImageHelper.toPrefixImageUrl(
                 url = serverUrl,
-                itemId = id,
-                type = ImageType.PRIMARY
+                itemId = id
             ),
             unwatchedEpisodeCount = userData?.unplayedItemCount ?: 0,
             seasonCount = childCount ?: 0,

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/home/HomeModels.kt

@@ -58,7 +58,10 @@ data class SuggestedSeries (
     override val id: UUID = series.id,
     override val title: String = series.name,
     override val description: String = series.synopsis,
-    override val imageUrl: String = series.heroImageUrl
+    override val imageUrl: String = JellyfinImageHelper.finishImageUrl(
+        prefixImageUrl = series.imageUrlPrefix,
+        imageType = ImageType.PRIMARY
+    )
 ) : SuggestedItem
 
 data class SuggestedMovie (
@@ -146,7 +149,7 @@ data class PosterItem(
     val imageUrl: String = when (type) {
         BaseItemKind.MOVIE -> movie!!.imageUrlPrefix
         BaseItemKind.EPISODE -> episode!!.heroImageUrl
-        BaseItemKind.SERIES -> series!!.heroImageUrl
+        BaseItemKind.SERIES -> series!!.imageUrlPrefix
         else -> throw IllegalArgumentException("Invalid type: $type")
     }
     fun watched() = when (type) {