Handle sharing intents

lib/providers/receive_sharing_intent_url.provider.dart

@@ -0,0 +1,16 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'receive_sharing_intent_url.provider.g.dart';
+
+@Riverpod(keepAlive: true)
+class ReceiveSharingIntentUrl extends _$ReceiveSharingIntentUrl {
+  @override
+  String? build() {
+    return null;
+  }
+
+  void setValue(String? value) {
+    state = value;
+    ref.notifyListeners();
+  }
+}