"Command+," open preference

Created by: pan-long

Description

Most of Apps in Mac OS support "Command+," open Preferences, like Chrome, Spotify, Telegram etc. It's expected Electronic Wechat has the same behavior.

Specifications

• Version of Electron (run $ electron --version): v1.4.7
• OS: Mac OS
• Stack trace from the error message (if any)

<Stack trace here>