Add ability to open random manga (#8232)

* Add ability to open random manga

* Use `getMangaForCategory` instead

* Put it in overflow menu instead of using EFAB

* Partial review changes

* Merge remote-tracking branch 'refs/remotes/origin/patch-6' into patch-6

# Conflicts:
#	app/src/main/java/eu/kanade/presentation/library/LibraryScreen.kt

* Merge remote-tracking branch 'refs/remotes/origin/patch-6' into patch-6

# Conflicts:
#	app/src/main/java/eu/kanade/presentation/library/LibraryScreen.kt

* Wording changes

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

@@ -43,6 +43,8 @@ class LibraryController(
     @Composable
     override fun ComposeContent() {
         val context = LocalContext.current
+        val getMangaForCategory = presenter.getMangaForCategory(page = presenter.activeCategory)
+
         LibraryScreen(
             presenter = presenter,
             onMangaClicked = ::openManga,
@@ -60,6 +62,14 @@ class LibraryController(
                 context.toast(if (started) R.string.updating_category else R.string.update_already_running)
                 started
             },
+            onClickOpenRandomManga = {
+                val items = getMangaForCategory.map { it.libraryManga.manga.id }
+                if (getMangaForCategory.isNotEmpty()) {
+                    openManga(items.random())
+                } else {
+                    context.toast(R.string.information_no_entries_found)
+                }
+            },
             onClickInvertSelection = { presenter.invertSelection(presenter.activeCategory) },
             onClickSelectAll = { presenter.selectAll(presenter.activeCategory) },
             onClickUnselectAll = ::clearSelection,

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

@@ -526,7 +526,7 @@ class LibraryPresenter(
 
     @Composable
     fun getMangaForCategory(page: Int): List<LibraryItem> {
-        val unfiltered = remember(categories, loadedManga) {
+        val unfiltered = remember(categories, loadedManga, page) {
             val categoryId = categories.getOrNull(page)?.id ?: -1
             loadedManga[categoryId] ?: emptyList()
         }