perf: use initializer instead of late initialization and polymorph getters

this will remove late initialization checks from runtime and unnecessary
getter overloads, which will also make classes more friendly to extension

Author: Zekfad

packages/talker/lib/src/models/talker_data.dart

@@ -14,19 +14,13 @@ class TalkerData {
     DateTime? time,
     this.pen,
     this.key,
-  }) {
-    _time = time ?? DateTime.now();
-  }
-
-  late DateTime _time;
+  }) : time = time ?? DateTime.now();
 
   /// {@template talker_data_message}
   /// [String] [message] - message describes what happened
   /// {@endtemplate}
   final String? message;
 
-  final String? key;
-
   /// {@template talker_data_loglevel}
   /// [LogLevel] [logLevel] - to control logging output
   /// {@endtemplate}
@@ -42,24 +36,26 @@ class TalkerData {
   /// {@endtemplate}
   final Error? error;
 
-  /// {@template talker_data_title}
-  /// Title of Talker log
-  /// {@endtemplate}
-  String? title;
-
   /// {@template talker_data_stackTrace}
   /// StackTrace?] [stackTrace] - stackTrace if [exception] or [error] happened
   /// {@endtemplate}
   final StackTrace? stackTrace;
 
+  /// {@template talker_data_title}
+  /// Title of Talker log
+  /// {@endtemplate}
+  String? title;
+
   /// {@template talker_data_time}
   /// Internal time when the log occurred
   /// {@endtemplate}
-  DateTime get time => _time;
+  final DateTime time;
 
   /// [AnsiPen?] [pen] - sets your own log color for console
   AnsiPen? pen;
 
+  final String? key;
+
   /// {@template talker_data_generateTextMessage}
   /// Internal method that generates
   /// a complete message about the event

packages/talker/lib/src/models/talker_error.dart

@@ -10,19 +10,12 @@ class TalkerError extends TalkerData {
     String? key,
     super.title,
     LogLevel? logLevel,
-  }) : super(message, error: error) {
-    _key = key ?? TalkerKey.error;
-    _logLevel = logLevel ?? LogLevel.error;
-  }
-
-  late String _key;
-  late LogLevel _logLevel;
-
-  @override
-  String get key => _key;
-
-  @override
-  LogLevel? get logLevel => _logLevel;
+  }) : super(
+          message,
+          logLevel: logLevel ?? LogLevel.error,
+          error: error,
+          key: key ?? TalkerKey.error,
+        );
 
   /// {@macro talker_data_generateTextMessage}
   @override

packages/talker/lib/src/models/talker_exception.dart

@@ -1,7 +1,7 @@
 import 'package:talker/talker.dart';
 
 /// Base implementation of [TalkerData]
-/// to handle ONLY [Exceptions]s
+/// to handle ONLY [Exception]s
 class TalkerException extends TalkerData {
   TalkerException(
     Exception exception, {
@@ -10,19 +10,12 @@ class TalkerException extends TalkerData {
     String? key,
     super.title,
     LogLevel? logLevel,
-  }) : super(message, exception: exception) {
-    _key = key ?? TalkerKey.exception;
-    _logLevel = logLevel ?? LogLevel.error;
-  }
-
-  late String _key;
-  late LogLevel _logLevel;
-
-  @override
-  String get key => _key;
-
-  @override
-  LogLevel? get logLevel => _logLevel;
+  }) : super(
+          message,
+          logLevel: logLevel ?? LogLevel.error,
+          exception: exception,
+          key: key ?? TalkerKey.exception,
+        );
 
   /// {@macro talker_data_generateTextMessage}
   @override