Set groundwork for persisting notes

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:fnotes/notes.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:fnotes/persistence_bloc.dart';
 import 'package:fnotes/theme_bloc.dart';
 
 void main() {
@@ -12,8 +13,11 @@ class MainApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return BlocProvider(
-      create: (context) => ThemeBloc(),
+    return MultiBlocProvider(
+      providers: [
+        BlocProvider(create: (context) => ThemeBloc()),
+        BlocProvider(create: (context) => PersistenceBloc())
+      ],
       child: BlocBuilder<ThemeBloc, ThemeState>(
         builder: (context, state) {
           return MaterialApp(

lib/persistence_bloc.dart

@@ -0,0 +1,27 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class PersistenceBloc extends Bloc<PersistenceEvent, PersistenceState> {
+  PersistenceBloc() : super(PersistenceState.init()) {
+    on<StoreNotesEvent>(storeAllNotes);
+    on<LoadNotesEvent>(loadAllNotes);
+  }
+
+  void storeAllNotes(PersistenceEvent event, Emitter<PersistenceState> emit) {}
+  void loadAllNotes(PersistenceEvent event, Emitter<PersistenceState> emit) {}
+}
+
+class PersistenceEvent {}
+
+class LoadNotesEvent extends PersistenceEvent {}
+
+class StoreNotesEvent extends PersistenceEvent {}
+
+class PersistenceState {
+  int lastIndex;
+
+  PersistenceState({required this.lastIndex});
+
+  factory PersistenceState.init() {
+    return PersistenceState(lastIndex: 0);
+  }
+}