update web log writer

lib/log/log.dart

@@ -100,7 +100,7 @@ class Log {
 
   void initializeLog() async {
     if (path == null) {
-      path = await Path.dataPath;
+      path = Path.dataPath;
       if (path!.isNotEmpty) {
         path = '$path/logs';
         var dir = Directory(path!);

lib/log/log_writer_io.dart

@@ -61,4 +61,4 @@ class LogWriterIO extends IsolateBase implements LogWriter {
   }
 }
 
-LogWriter getLogWriter() => LogWriterIO();
+LogWriter getLogWriter() => LogWriterIO();

lib/log/log_writer_web.dart

@@ -1,7 +1,20 @@
-import 'package:dart_framework/data/isolate_data.dart';
+import 'package:dart_framework/platform/platform_base.dart';
 
-void startLog(String path, Function(IsoMessege) listener) {}
+class LogWriterWeb implements LogWriter {
+  @override
+  void start(String path, Map<String, void Function(Object?)> messageListenerMap) {
 
-void writeLog(String log) {}
+  }
 
-void endLog() {}
+  @override
+  void write(String log) {
+
+  }
+
+  @override
+  void end() {
+    
+  }
+}
+
+LogWriter getLogWriter() => LogWriterWeb();