Misc fixes

app/src/main/java/org/koitharu/kotatsu/domain/favourites/FavouritesRepository.kt

@@ -105,7 +105,7 @@ class FavouritesRepository : KoinComponent {
 		}
 
 		fun unsubscribe(listener: OnFavouritesChangeListener) {
-			listeners += listener
+			listeners -= listener
 		}
 
 		private suspend fun notifyFavouritesChanged(mangaId: Long) {

app/src/main/java/org/koitharu/kotatsu/domain/history/HistoryRepository.kt

@@ -86,7 +86,7 @@ class HistoryRepository : KoinComponent {
 		}
 
 		fun unsubscribe(listener: OnHistoryChangeListener) {
-			listeners += listener
+			listeners -= listener
 		}
 
 		private suspend fun notifyHistoryChanged() {

app/src/main/java/org/koitharu/kotatsu/ui/main/list/favourites/FavouritesListPresenter.kt

@@ -26,8 +26,12 @@ class FavouritesListPresenter : BasePresenter<MangaListView<Unit>>() {
 			viewState.onLoadingStateChanged(true)
 			try {
 				val list = withContext(Dispatchers.IO) {
+					if (categoryId == 0L) {
+						repository.getAllManga(offset = offset)
+					} else {
 						repository.getManga(categoryId = categoryId, offset = offset)
 					}
+				}
 				if (offset == 0) {
 					viewState.onListChanged(list)
 				} else {

app/src/main/java/org/koitharu/kotatsu/ui/settings/sources/SourcesSettingsFragment.kt

@@ -2,7 +2,9 @@ package org.koitharu.kotatsu.ui.settings.sources
 
 import android.os.Bundle
 import android.view.View
+import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.ItemTouchHelper
+import androidx.recyclerview.widget.RecyclerView
 import kotlinx.android.synthetic.main.fragment_settings_sources.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaSource
@@ -27,6 +29,7 @@ class SourcesSettingsFragment : BaseFragment(R.layout.fragment_settings_sources)
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
+		recyclerView.addItemDecoration(DividerItemDecoration(view.context, RecyclerView.VERTICAL))
 		recyclerView.adapter = SourcesAdapter(this)
 		reorderHelper.attachToRecyclerView(recyclerView)
 	}

app/src/main/java/org/koitharu/kotatsu/ui/tracker/TrackWorker.kt

@@ -134,7 +134,7 @@ class TrackWorker(context: Context, workerParams: WorkerParameters) :
 			newChapters.size, newChapters.size)
 		with(builder) {
 			setContentText(summary)
-			setContentText(manga.title)
+			setContentTitle(manga.title)
 			setNumber(newChapters.size)
 			setLargeIcon(Coil.execute(GetRequestBuilder(applicationContext)
 				.data(manga.coverUrl)