TF-3678 Support accessibility for loading icon in the mail list area

Signed-off-by: dab246 <tdvu@linagora.com>

core/lib/presentation/views/semantics/icon_semantics.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+
+class IconSemantics extends StatelessWidget {
+  final Widget child;
+  final String label;
+
+  const IconSemantics({
+    super.key,
+    required this.child,
+    required this.label,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Semantics(
+      label: label,
+      container: true,
+      image: true,
+      child: child,
+    );
+  }
+}