feat(profile): subscribers and subscriptions

lib/core/widgets/loader.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+import 'package:rive/rive.dart';
+
+class Loader extends StatelessWidget {
+  const Loader({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: SizedBox(
+        height: 32,
+        width: 32,
+        child: RiveAnimation.asset(
+          'assets/rive_animations/loading.riv',
+        ),
+      ),
+    );
+  }
+}