Added logs screen for server login

lib/screens/logs/logs.dart

@@ -0,0 +1,65 @@
+// ignore_for_file: use_build_context_synchronously
+
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import 'package:adguard_home_manager/providers/app_config_provider.dart';
+
+class Logs extends StatelessWidget {
+  const Logs({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final appConfigProvider = Provider.of<AppConfigProvider>(context);
+
+    void copyLogsClipboard() async {
+      await Clipboard.setData(
+        ClipboardData(text: jsonEncode(appConfigProvider.logs))
+      );
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text("Logs copied to the clipboard"),
+          backgroundColor: Colors.black,
+        )
+      );
+    }
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text("Logs"),
+        actions: [
+          IconButton(
+            onPressed: appConfigProvider.logs.isNotEmpty
+              ? copyLogsClipboard
+              : null, 
+            icon: const Icon(Icons.share),
+            tooltip: "Copy logs to clipboard",
+          ),
+          const SizedBox(width: 10),
+        ],
+      ),
+      body: appConfigProvider.logs.isNotEmpty
+        ? ListView.builder(
+          padding: const EdgeInsets.only(top: 0),
+          itemCount: appConfigProvider.logs.length,
+          itemBuilder: (context, index) => ListTile(
+            title: Text(appConfigProvider.logs[index]['message']),
+            subtitle: Text(appConfigProvider.logs[index]['time']),
+            trailing: Text(appConfigProvider.logs[index]['type']),
+          )
+        )
+      : const Center(
+          child: Text(
+            "No saved logs",
+            style: TextStyle(
+              fontSize: 24,
+              color: Colors.grey,
+            ),
+          ),
+        )
+    );
+  }
+}