chore: update chat.sendMessage schema to require only 'message' field

Author: ahmed-n-abdeltwab

apps/meteor/app/api/server/v1/chat.ts

@@ -340,7 +340,7 @@ const chatSendMessageSchema = {
 			nullable: true,
 		},
 	},
-	required: ['message', 'rid'],
+	required: ['message'],
 	additionalProperties: false,
 };