Add communication apps

[itsnotsaved]

• Revolt Chat - Communication is critical, Privacy is essential. (1:1 opensource alternative to discord) https://revolt.chat/ https://github.com/revoltchat#download-links

• Session https://github.com/oxen-io/session-android

• NextCloud Talk - https://nextcloud.com/talk/

• Twake - https://twake.app/

• Mattermost - https://mattermost.com/

• Status - https://status.im/

[huangshouguo]

您好，我是黄守国，您的邮件我已经收到，谢谢！这是来自QQ邮箱的自动回复邮件。  

[itsnotsaved]

您好，我是黄守国，您的邮件我已经收到，谢谢！这是来自QQ邮箱的自动回复邮件。

祝你有美好的一天！

[IamRezaMousavi]

I would like to work on this