Remove preferences delegates

app/src/main/java/org/koitharu/kotatsu/widget/shelf/ShelfConfigActivity.kt

@@ -50,7 +50,7 @@ class ShelfConfigActivity : BaseActivity<ActivityCategoriesBinding>(),
 			finishAfterTransition()
 			return
 		}
-		config = AppWidgetConfig.getInstance(this, appWidgetId)
+		config = AppWidgetConfig(this, appWidgetId)
 		viewModel.checkedId = config.categoryId
 
 		viewModel.content.observe(this, this::onContentChanged)
@@ -118,4 +118,4 @@ class ShelfConfigActivity : BaseActivity<ActivityCategoriesBinding>(),
 		intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids)
 		sendBroadcast(intent)
 	}
-}
+}

app/src/main/java/org/koitharu/kotatsu/widget/shelf/ShelfListFactory.kt

@@ -24,7 +24,7 @@ class ShelfListFactory(
 ) : RemoteViewsService.RemoteViewsFactory {
 
 	private val dataSet = ArrayList<Manga>()
-	private val config = AppWidgetConfig.getInstance(context, widgetId)
+	private val config = AppWidgetConfig(context, widgetId)
 
 	override fun onCreate() {
 	}
@@ -73,4 +73,4 @@ class ShelfListFactory(
 	override fun getViewTypeCount() = 1
 
 	override fun onDestroy() = Unit
-}
+}