Bug/2894 covers not updating (#2908)

* Use a wrapper around Manga to supply glide with proper equals() and hashCode() impl. for caching

* reload image if url has changed

* ignore case for http scheme comparison

* more ignore case for http scheme comparison

* fix indenting

* use data class for MangaThumbnail

app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt

@@ -22,6 +22,7 @@ import eu.kanade.tachiyomi.data.database.models.LibraryManga
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.download.DownloadService
+import eu.kanade.tachiyomi.data.glide.toMangaThumbnail
 import eu.kanade.tachiyomi.data.library.LibraryUpdateRanker.rankingScheme
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService.Companion.start
 import eu.kanade.tachiyomi.data.notification.NotificationReceiver
@@ -557,7 +558,7 @@ class LibraryUpdateService(
         return try {
             Glide.with(this)
                     .asBitmap()
-                    .load(manga)
+                    .load(manga.toMangaThumbnail())
                     .dontTransform()
                     .centerCrop()
                     .circleCrop()