Feature request: Locked messages (feature that can be enabled to hide messages until they are clicked upon)

"At Wickr, we value your privacy above everything else. However, what is the point of keeping your messages end-to-end encrypted, ephemeral, and protected with a zero-trust architecture if someone can simply look over your shoulder to view your messages? This is where locked messages can come in handy.

As a default, Wickr Me locks your messages and AWS Wickr leaves them unlocked. When a message is locked, this means that in order for the content of the message to be seen, you need to tap the message." -- So, Amazon Web Services (AWS) Wickr leaves them unlocked.

On 18 November 2022, Wickr announced that it will be ending the free Wickr Me version of its app by the end of 2023. Wickr Me will not be accepting new user registrations after 31 December 2022, and will stop the Wickr Me services completely per 31 December 2023. - https://www.theverge.com/2022/11/19/23468065/wickr-free-encrypted-messaging-app-shutting-down-amazon-web-services. Wickr announced that it would be focusing on its business and public sector versions, AWS Wickr and Wickr Enterprise, instead.

Wickr Me is the only instant messaging app that has a message lock feature, and Wickr Me will soon disappear. So this feature should be adopted by other IM clients by their developers in order to keep them with a good privacy standard.