Migrate feed to adapter delegates

app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListFragment.kt

@@ -32,12 +32,13 @@ class LocalListFragment : MangaListFragment(), ActivityResultCallback<Uri> {
 		viewModel.onMangaRemoved.observe(viewLifecycleOwner, ::onItemRemoved)
 	}
 
-	override fun onRequestMoreItems(offset: Int) {
-		if (offset == 0) {
-			viewModel.onRefresh()
-		}
+	override fun onRefresh() {
+		super.onRefresh()
+		viewModel.onRefresh()
 	}
 
+	override fun onScrolledToEnd() = Unit
+
 	override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
 		inflater.inflate(R.menu.opt_local, menu)
 		super.onCreateOptionsMenu(menu, inflater)

app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListViewModel.kt

@@ -45,11 +45,17 @@ class LocalListViewModel(
 	}.asLiveData(viewModelScope.coroutineContext + Dispatchers.Default)
 
 	init {
-		loadList()
+		onRefresh()
 	}
 
 	fun onRefresh() {
-		loadList()
+		launchLoadingJob {
+			withContext(Dispatchers.Default) {
+				val list = repository.getList(0)
+				mangaList.value = list
+				isEmptyState.postValue(list.isEmpty())
+			}
+		}
 	}
 
 	fun importFile(uri: Uri) {
@@ -69,7 +75,7 @@ class LocalListViewModel(
 					}
 				} ?: throw IOException("Cannot open input stream: $uri")
 			}
-			loadList()
+			onRefresh()
 		}
 	}
 
@@ -88,14 +94,4 @@ class LocalListViewModel(
 			onMangaRemoved.call(manga)
 		}
 	}
-
-	private fun loadList() {
-		launchLoadingJob {
-			withContext(Dispatchers.Default) {
-				val list = repository.getList(0)
-				mangaList.value = list
-				isEmptyState.postValue(list.isEmpty())
-			}
-		}
-	}
 }