Add right click context menu support

[Afterlifepro]

Is your feature request related to a problem? Please describe.
On the native windows 10 app, right clicking on a message or chat would open a context menu where you can choose to reply to messages, pin chats, or see message info. This functionality is available in WhatsApp for web (and by proxy this project) however for some reason it only works with a drop-down (?) menu which is only visible on hover.

Describe the solution you'd like
Essentially, I'd like it if it opened the context menu when you right clicked on a chat instead of requiring the hover based menu which is much more annoying to use