updated file names

src/queue.ts

@@ -8,10 +8,10 @@ import * as fs from 'fs';
 import { emsg, getChannel, getMember, memberIsModThrow, queueInfo, queueInfoBase } from "./util";
 
 //load queues from file
-if (!fs.existsSync('./queues'))
-    fs.writeFileSync('./queues', '{}');
+if (!fs.existsSync('./queues.json'))
+    fs.writeFileSync('./queues.json', '{}');
 
-const _QUEUE = fs.readFileSync('./queues').toString(),
+const _QUEUE = fs.readFileSync('./queues.json').toString(),
     QUEUE = new Map<string, queueInfo>();
 
 try {