Add FilamentModel with all properties and refactor notes as optional

lib/widgets/outlined_text.dart

@@ -0,0 +1,38 @@
+import 'package:flutter/material.dart';
+
+/// Rendert Text mit einer farbigen Kontur (Stroke) via Stack.
+class OutlinedText extends StatelessWidget {
+  final String text;
+  final TextStyle style;
+  final Color fillColor;
+  final Color strokeColor;
+  final double strokeWidth;
+
+  const OutlinedText(
+    this.text, {
+    super.key,
+    required this.style,
+    required this.fillColor,
+    this.strokeColor = Colors.black,
+    this.strokeWidth = 2.0,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final strokeStyle = style.copyWith(
+      foreground: Paint()
+        ..style = PaintingStyle.stroke
+        ..strokeWidth = strokeWidth
+        ..strokeJoin = StrokeJoin.round
+        ..color = strokeColor,
+    );
+    final fillStyle = style.copyWith(color: fillColor);
+
+    return Stack(
+      children: [
+        Text(text, style: strokeStyle),
+        Text(text, style: fillStyle),
+      ],
+    );
+  }
+}