fix：使用图片相关功能后，后台会有关不掉的窗口 (#268)

* Update config_default.yaml

* Update puppeteer.js

* fix：版本号

package.json

@@ -1,6 +1,6 @@
 {
   "name": "miao-yunzai",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "author": "Yoimiya-Kokomi, Le-niao",
   "description": "QQ group Bot",
   "main": "app.js",

renderers/puppeteer/config_default.yaml

@@ -10,7 +10,7 @@ chromiumPath:
 puppeteerWS:
 
 # headless
-headless: "new"
+headless: 'new'
 
 # puppeteer启动args，注意args的--前缀
 args:

renderers/puppeteer/lib/puppeteer.js

@@ -27,7 +27,7 @@ export default class Puppeteer extends Renderer {
     /** 截图次数 */
     this.renderNum = 0
     this.config = {
-      headless: Data.def(config.headless, 'new'),
+      headless: Data.def(config.headless, true),
       args: Data.def(config.args, [
         '--disable-gpu',
         '--disable-setuid-sandbox',