feat: Create mixin

lib/src/mixins/translation.dart

@@ -0,0 +1,33 @@
+import 'package:mineral_i18n/mineral_i18n.dart';
+import 'package:mineral_ioc/ioc.dart';
+
+mixin Translation {
+  I18n _getPlugin () {
+    final dynamic pluginManager = ioc.services.entries.firstWhere((element) => element.key.toString() == 'PluginManagerCraft').value;
+    return pluginManager.use<I18n>();
+  }
+
+  /// Translates the sentence defined by the key set into the requested language.
+  /// Replacement parameters can be injected.
+  /// ```dart
+  /// final String sentence = t(Lang.enGB, 'foo.bar');
+  /// print(sentence) 👈 'Hello {user}'
+  ///
+  /// final String sentence = t(Lang.enGB, 'foo.bar', { 'user': 'Freeze' });
+  /// print(sentence) 👈 'Hello Freeze'
+  /// ```
+  String t (Lang lang, String key, { Map<String, dynamic>? replacers }) {
+    dynamic target = _getPlugin().translationManager.cache[lang.normalize];
+    for (final element in key.split('.')) {
+      target = target[element];
+    }
+
+    if (replacers != null) {
+      for (final replacer in replacers.entries) {
+        target = target.toString().replaceAll('{${replacer.key}}', replacer.value);
+      }
+    }
+
+    return target;
+  }
+}