Inline DownloadQueue into Downloader (#9159)

* Move statusFlow and progressFlow to DownloadManager

* Inline DownloadQueue into Downloader

* Move reorderQueue implementation to Downloader

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaScreenModel.kt

@@ -427,7 +427,7 @@ class MangaInfoScreenModel(
 
     private fun observeDownloads() {
         coroutineScope.launchIO {
-            downloadManager.queue.statusFlow()
+            downloadManager.statusFlow()
                 .filter { it.manga.id == successState?.manga?.id }
                 .catch { error -> logcat(LogPriority.ERROR, error) }
                 .collect {
@@ -438,7 +438,7 @@ class MangaInfoScreenModel(
         }
 
         coroutineScope.launchIO {
-            downloadManager.queue.progressFlow()
+            downloadManager.progressFlow()
                 .filter { it.manga.id == successState?.manga?.id }
                 .catch { error -> logcat(LogPriority.ERROR, error) }
                 .collect {