fix(Client): omit private properties from toJSON (#8337)

packages/discord.js/src/client/BaseClient.js

@@ -63,7 +63,7 @@ class BaseClient extends EventEmitter {
   }
 
   toJSON(...props) {
-    return flatten(this, { domain: false }, ...props);
+    return flatten(this, ...props);
   }
 }
 

packages/discord.js/src/client/Client.js

@@ -454,7 +454,8 @@ class Client extends BaseClient {
 
   toJSON() {
     return super.toJSON({
-      readyAt: false,
+      actions: false,
+      presence: false,
     });
   }