Add macOS support (#23)

* Add macOS support

* Update README

* Update to v0.2.0

* Document breaking changes

* Delete widget tests

example_full/lib/presentation/view/idle_view.dart

@@ -19,7 +19,7 @@ class _IdleViewState extends State<IdleView> {
   @override
   void initState() {
     WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
-      context.read<AppService>().getSavedIOSDeviceName().then((value) {
+      context.read<AppService>().getSavedDarwinDeviceName().then((value) {
         controller.text = value;
         controller.selection = TextSelection.collapsed(offset: value.length);
         setState(() {
@@ -56,7 +56,7 @@ class _IdleViewState extends State<IdleView> {
     return Center(
       child: Column(
         children: [
-          if (Platform.isIOS)
+          if (Platform.isIOS || Platform.isMacOS)
             Padding(
               padding: const EdgeInsets.only(bottom: 10.0),
               child: TextFormField(

example_full/lib/presentation/view/ready_view.dart

@@ -19,7 +19,7 @@ class ReadyView extends StatelessWidget {
           title: 'Start discover peers',
         ),
         const SizedBox(height: 10),
-        if (Platform.isIOS)
+        if (Platform.isIOS || Platform.isMacOS)
           ActionButton(
             onTap: () {
               context.read<AppService>().updateState(AppState.selectClientType);

example_full/lib/presentation/view/streaming_peers_view.dart

@@ -34,8 +34,8 @@ class _PeersBody extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Selector<AppService, bool>(
-      selector: (context, service) => service.isIOSBrowser,
-      builder: (context, isIOSBrowser, _) {
+      selector: (context, service) => service.isDarwinBrowser,
+      builder: (context, isDarwinBrowser, _) {
         return Selector<AppService, List<NearbyDevice>?>(
           selector: (context, service) => service.peers,
           builder: (context, peers, _) {
@@ -55,7 +55,7 @@ class _PeersBody extends StatelessWidget {
                     ],
                   )
                 : Text(
-                    Platform.isAndroid || isIOSBrowser
+                    Platform.isAndroid || isDarwinBrowser
                         ? 'No one here ('
                         : "Wait until someone invites you!",
                     textAlign: TextAlign.center,