Suggestions for Jami Android version

[pratyushofficial]

Hi Jami's Developers!

I have been using Jami Android version for a while now and I am so far 
satisfied by it. The UI of the app makes it so much user friendly and I haven't 
faced any major issues yet. I am writing this email to suggest a few features 
specific to Android version (but maybe they can be implemented on other 
platforms too?). The following features are what I want to suggest:
1. Screen Security: feature to block screenshots and screen recording of the 
app by other apps
2. Incognito keyboard: forcing the keyboard, that is being used, to use 
incognito mode
3. Screen lock: an additional layer of security on the app access by using 
Biometrics or a Pin code.

I hope you guys consider my suggestions.
Thank you for this amazing app!