some review fixes

Author: handgull

example/lib/charts/basic_line_chart.dart

@@ -12,7 +12,6 @@ class BasicLineChart extends StatefulWidget {
 }
 
 class _BasicLineChartState extends State<BasicLineChart> {
-
   final controller = GraphifyController();
   Timer? timer;
 
@@ -28,14 +27,13 @@ class _BasicLineChartState extends State<BasicLineChart> {
         ]
       });
     });
-
   }
 
   @override
   Widget build(BuildContext context) {
     return GraphifyView(
       controller: controller,
-      onConsoleMessage: <String>(message) {
+      onConsoleMessage: (message) {
         print("[ERROR] $message");
       },
       initialOptions: const {
@@ -44,9 +42,7 @@ class _BasicLineChartState extends State<BasicLineChart> {
           "type": "category",
           "data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
         },
-        "yAxis": {
-          "type": "value"
-        },
+        "yAxis": {"type": "value"},
         "series": [
           {
             "data": [150, 230, 224, 218, 135, 147, 260],
@@ -63,5 +59,4 @@ class _BasicLineChartState extends State<BasicLineChart> {
     controller.dispose();
     super.dispose();
   }
-
 }

lib/src/view/implements/mobile.dart

@@ -58,13 +58,12 @@ class _GraphifyViewState extends g_view.GraphifyViewState<GraphifyView> {
   }
 
   @override
-  void dispose() {
+  Future<void> dispose() async {
     if (widget.controller == null) {
       controller.dispose();
     }
-    webViewController
-      ..clearLocalStorage()
-      ..clearCache();
+    await webViewController.clearLocalStorage();
+    await webViewController.clearCache();
     super.dispose();
   }
 }

lib/src/view/implements/web.dart

@@ -75,7 +75,7 @@ class _GraphifyViewState extends g_view.GraphifyViewState<GraphifyView> {
       ..id = 'graphify-click-channel-shim-$uid'
       ..innerHTML = '''
       (function(uid){
-        // Definisci il channel solo se non già presente
+        // Define the channel only if not already present
         if (!window.ClickEventChannel) {
           window.ClickEventChannel = {
             postMessage: function(payload) {
@@ -85,7 +85,7 @@ class _GraphifyViewState extends g_view.GraphifyViewState<GraphifyView> {
                   chartId: uid,
                   payload: String(payload)
                 });
-                // Inoltra come stringa: il controller web si aspetta un JSON string
+                // Forward as a string: the web controller expects a JSON string
                 window.postMessage(envelope, '*');
               } catch (e) {
                 console.error('ClickEventChannel shim error', e);