TF-48 Implement autocomplete email address

lib/features/composer/domain/model/auto_complete_pattern.dart

@@ -0,0 +1,19 @@
+
+import 'package:equatable/equatable.dart';
+
+class AutoCompletePattern with EquatableMixin {
+
+  final String? word;
+  final int? limit;
+  final String? orderBy;
+
+  AutoCompletePattern({
+    this.word,
+    this.limit,
+    this.orderBy
+  });
+
+  @override
+  List<Object?> get props => [word, limit, orderBy];
+
+}