[REQ] add support for blocking screenshots being taken

[grrrrr]

I am aware that this is not a perfect privacy solution and there are ways around it but it would be useful to have Fritter block the ability to take screenshots.

While the risks / concerns of someone remotely taking a screenshot of Fritter on most peoples devices phone are low there are still users who are high risk, it is a possibility that some malware is setup to take screenshots of open apps. Given that following certain topics in various countries can get you in trouble this would be a beneficial ability to hide contents from malicious eyes

Additionally with screenshots blocked, switching apps would result in you seeing Fritter is your list of open apps but not seeing the screen it's contents

My suggestion would be to add a toggle option in a new settings -> privacy section that would allow people to turn on or off the blocking of screenshots.

Some apps that do that have this option if examples/comparison is needed

• Signal (allows toggling screenshot capture on or off)
• Protonmail (always blocked)
• Aegis (allows toggling screenshot capture on or off)
• KeepassDX (always blocked)