Use logging library

lib/home_page.dart

@@ -1,6 +1,5 @@
-import 'dart:developer';
-
 import 'package:flutter/material.dart';
+import 'package:logging/logging.dart';
 import 'package:sheetless/sheet_viewer_page.dart';
 import 'package:sheetless/storage_helper.dart';
 
@@ -18,6 +17,7 @@ class _MyHomePageState extends State<MyHomePage> {
   ApiClient? apiClient;
   Future<bool> apiLoggedIn = Future.value(false);
   final StorageHelper _storageHelper = StorageHelper();
+  final log = Logger("MyHomePage");
 
   @override
   void initState() {
@@ -40,7 +40,7 @@ class _MyHomePageState extends State<MyHomePage> {
     apiClient = ApiClient(baseUrl: url!, token: jwt);
     // TODO: check if really logged in
     final sheets = await apiClient!.fetchSheets();
-    log("${sheets.length} sheets fetched");
+    log.info("${sheets.length} sheets fetched");
     return sheets;
     // return api.main();