feat: clear log

lib/logger_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:winui_n2n/edge_state.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 class LoggerPage extends StatelessWidget {
   const LoggerPage({super.key});
@@ -9,12 +10,26 @@ class LoggerPage extends StatelessWidget {
     return ListenableBuilder(
       listenable: EdgeState.instance.logger,
       builder: (context, child) {
-        return ListView(
-          children: EdgeState.instance.logger.logList.map<SelectableText>(
-            (e) {
-              return SelectableText(e);
-            },
-          ).toList(),
+        return Stack(
+          children: [
+            ListView(
+              children: EdgeState.instance.logger.logList.map<SelectableText>(
+                (e) {
+                  return SelectableText(e);
+                },
+              ).toList(),
+            ),
+            Positioned(
+                right: 10,
+                bottom: 10,
+                child: FloatingActionButton(
+                  tooltip: AppLocalizations.of(context)!.clearLog,
+                  onPressed: () {
+                    EdgeState.instance.logger.clearLog();
+                  },
+                  child: const Icon(Icons.clear),
+                )),
+          ],
         );
       },
     );