We should be able to hide previous messages when reading a conversation

[LaPalice]

Reading a whole conversation is uncomfortable because previous messages cannot be hidden. It could be useful to be able to "toggle" the view of previous messages.

[clochix]

Thanks for your feedback @LaPalice. The application used to allow to toggle messages visibility, so this is probably a regression.
Looks like it has already been fixed on our development branch, but I leave this ticket open.