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();
+  }
+}

lib/providers/receive_sharing_intent_url.provider.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'receive_sharing_intent_url.provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+String _$receiveSharingIntentUrlHash() =>
+    r'fc62c4867e311b7d8d0573d263af2daaf784fb1f';
+
+/// See also [ReceiveSharingIntentUrl].
+@ProviderFor(ReceiveSharingIntentUrl)
+final receiveSharingIntentUrlProvider =
+    NotifierProvider<ReceiveSharingIntentUrl, String?>.internal(
+  ReceiveSharingIntentUrl.new,
+  name: r'receiveSharingIntentUrlProvider',
+  debugGetCreateSourceHash: const bool.fromEnvironment('dart.vm.product')
+      ? null
+      : _$receiveSharingIntentUrlHash,
+  dependencies: null,
+  allTransitiveDependencies: null,
+);
+
+typedef _$ReceiveSharingIntentUrl = Notifier<String?>;
+// ignore_for_file: type=lint
+// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member