#36 Fixed overflowing message time

lib/extensions/text.dart

@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+
+extension TextExt on Text {
+  Size get size {
+    final TextPainter textPainter = TextPainter(
+        text: TextSpan(text: data, style: style),
+        maxLines: 1,
+        textDirection: TextDirection.ltr
+    )..layout(minWidth: 0, maxWidth: double.infinity);
+    return textPainter.size;
+  }
+}