feat: add Patcher API.

lib/utils/string.dart

@@ -0,0 +1,8 @@
+extension StringCasingExtension on String {
+  String toCapitalized() =>
+      length > 0 ? '${this[0].toUpperCase()}${substring(1).toLowerCase()}' : '';
+  String toTitleCase() => replaceAll(RegExp(' +'), ' ')
+      .split(' ')
+      .map((str) => str.toCapitalized())
+      .join(' ');
+}