snackbar notif component, connectivity check

Issue: saber-notes#541

lib/components/notifs/snackbar.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+
+class SnackBarNotification extends StatelessWidget {
+  final String message;
+
+  const SnackBarNotification({
+    super.key,
+    required this.message,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return SnackBar(
+      content: Text(message),
+    );
+  }
+
+  static void show(BuildContext context, {required String message}) {
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text(message),
+      ),
+    );
+  }
+}

lib/pages/editor/editor.dart

@@ -21,6 +21,7 @@ import 'package:saber/components/canvas/canvas_preview.dart';
 import 'package:saber/components/canvas/image/editor_image.dart';
 import 'package:saber/components/canvas/save_indicator.dart';
 import 'package:saber/components/navbar/responsive_navbar.dart';
+import 'package:saber/components/notifs/snackbar.dart';
 import 'package:saber/components/theming/adaptive_alert_dialog.dart';
 import 'package:saber/components/theming/adaptive_icon.dart';
 import 'package:saber/components/theming/dynamic_material_app.dart';
@@ -1731,9 +1732,7 @@ class EditorState extends State<Editor> {
 
   void snackBarNeedsToSaveBeforeExiting() {
     if (!mounted) return;
-    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-      content: Text(t.editor.needsToSaveBeforeExiting),
-    ));
+    SnackBarNotification.show(context, message: t.editor.needsToSaveBeforeExiting);
   }
 
   Widget bottomSheet(BuildContext context) {

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,6 +6,7 @@ import FlutterMacOS
 import Foundation
 
 import audioplayers_darwin
+import connectivity_plus
 import desktop_webview_window
 import device_info_plus
 import dynamic_color
@@ -24,6 +25,7 @@ import window_to_front
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   AudioplayersDarwinPlugin.register(with: registry.registrar(forPlugin: "AudioplayersDarwinPlugin"))
+  ConnectivityPlusPlugin.register(with: registry.registrar(forPlugin: "ConnectivityPlusPlugin"))
   DesktopWebviewWindowPlugin.register(with: registry.registrar(forPlugin: "DesktopWebviewWindowPlugin"))
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   DynamicColorPlugin.register(with: registry.registrar(forPlugin: "DynamicColorPlugin"))

windows/flutter/generated_plugin_registrant.cc

@@ -7,6 +7,7 @@
 #include "generated_plugin_registrant.h"
 
 #include <audioplayers_windows/audioplayers_windows_plugin.h>
+#include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <desktop_webview_window/desktop_webview_window_plugin.h>
 #include <dynamic_color/dynamic_color_plugin_c_api.h>
 #include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
@@ -23,6 +24,8 @@
 void RegisterPlugins(flutter::PluginRegistry* registry) {
   AudioplayersWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("AudioplayersWindowsPlugin"));
+  ConnectivityPlusWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ConnectivityPlusWindowsPlugin"));
   DesktopWebviewWindowPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("DesktopWebviewWindowPlugin"));
   DynamicColorPluginCApiRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -4,6 +4,7 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   audioplayers_windows
+  connectivity_plus
   desktop_webview_window
   dynamic_color
   flutter_secure_storage_windows