fix: More "Comparison method violates its general contract!" prevention

Author: null2264

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -637,6 +637,9 @@ class LibraryPresenter(
      * @param itemList the map to sort.
      */
     private fun List<LibraryItem>.applySort(): List<LibraryItem> {
+        // Making sure `allCategories` is stable for `.sort()`Add commentMore actions
+        val categoryOrderMap = allCategories.associate { it.id to it.order }
+
         val sortFn: (LibraryItem, LibraryItem) -> Int = { i1, i2 ->
             if (i1.header.category.id == i2.header.category.id) {
                 val category = i1.header.category
@@ -663,12 +666,8 @@ class LibraryPresenter(
                             LibrarySort.DateAdded -> i2.manga.date_added.compareTo(i1.manga.date_added)
                             LibrarySort.DragAndDrop -> {
                                 if (category.isDynamic) {
-                                    val category1 =
-                                        allCategories.find { i1.manga.category == it.id }?.order
-                                            ?: 0
-                                    val category2 =
-                                        allCategories.find { i2.manga.category == it.id }?.order
-                                            ?: 0
+                                    val category1 = categoryOrderMap[i1.manga.category] ?: 0
+                                    val category2 = categoryOrderMap[i2.manga.category] ?: 0
                                     category1.compareTo(category2)
                                 } else {
                                     sortAlphabetical(i1, i2)