feat: Allow setting the self-avatar

packages/moxplatform_platform_interface/lib/src/api.g.dart

@@ -306,6 +306,28 @@ class MoxplatformApi {
     }
   }
 
+  Future<void> setNotificationSelfAvatar(String arg_path) async {
+    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
+        'dev.flutter.pigeon.moxplatform_platform_interface.MoxplatformApi.setNotificationSelfAvatar', codec,
+        binaryMessenger: _binaryMessenger);
+    final List<Object?>? replyList =
+        await channel.send(<Object?>[arg_path]) as List<Object?>?;
+    if (replyList == null) {
+      throw PlatformException(
+        code: 'channel-error',
+        message: 'Unable to establish connection on channel.',
+      );
+    } else if (replyList.length > 1) {
+      throw PlatformException(
+        code: replyList[0]! as String,
+        message: replyList[1] as String?,
+        details: replyList[2],
+      );
+    } else {
+      return;
+    }
+  }
+
   Future<String> getPersistentDataPath() async {
     final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
         'dev.flutter.pigeon.moxplatform_platform_interface.MoxplatformApi.getPersistentDataPath', codec,

packages/moxplatform_platform_interface/lib/src/notifications.dart

@@ -6,5 +6,7 @@ abstract class NotificationsImplementation {
 
   Future<void> showMessagingNotification(MessagingNotification notification);
 
+  Future<void> setNotificationSelfAvatar(String path);
+
   Stream<NotificationEvent> getEventStream();
 }

packages/moxplatform_platform_interface/lib/src/notifications_stub.dart

@@ -9,6 +9,9 @@ class StubNotificationsImplementation extends NotificationsImplementation {
   @override
   Future<void> showMessagingNotification(MessagingNotification notification) async {}
 
+  @override
+  Future<void> setNotificationSelfAvatar(String path) async {}
+
   @override
   Stream<NotificationEvent> getEventStream() {
     return StreamController<NotificationEvent>().stream;