SwitchHosts v4.0.3

• [Improved] If the language is not set in preferences, try to use the system language at startup
• [Improved] Added French translation, thanks to Aktilor #623
• [Improved] Some UI details are improved
• [Improved] Update dependencies; update Electron to v13.2.1

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• [Improved] 如未设置语言，启动时尝试使用系统语言
• [Improved] 添加法语翻译，感谢 Aktilor #623
• [Improved] 一些细节改进
• [Improved] 更新依赖，更新 Electron 到 v13.2.1