Misfunction of `wechat_qr` in Social Integration

[yinhanyan]

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Bug description

The wechat_qr of bottom social integration will not work when enable_navbar_social is set true.

How to reproduce the bug

1. modify the _config.yml

   enable_navbar_social: true
   wechat_qr: wechat-qr1.png

2. The WeChat icon at the navbar can be clicked but the WeChat icon at the bottom cannot.

Error messages and logs

No response

What operating system are you using?

Not applicable (e.g. you're using GitHub Pages or other hosting)

Where are you seeing the problem on?

Deployed site

More info

No response