Usability issues of voice messages: enhancement requests

### Your use case

#### What would you like to do?
1. See if something is happening when I can't play a that a voice messages
2. Start listening to a voice messages even if not fully downloaded
3. MVP: If I pause a message and switch room, be able to go back to where I was
4. Ideally: continue to be able to listen to a voice message while I navigate to another room

#### Why would you like to do it?
Because the current behaviour is painful to use.

#### Current behavious
1. There is a voice message in my timeline
2. I hover my mouse over the play button to listen to it
=> I get a forbidden-type sign in a tool tip and can't press play
=> I get no indication about whether something (downloading? decrypting?) is happening in the bg (so I don't know if I will ever be able to play said message). It lasts >20s for a 7mn voice message

3. Once downloaded, I can start playing
4. I pause then change room to reply to someone, then come back
=> not only I lost my position in the message
=> but the message needs to decrytp/download again!!! So I get the same forbidden sign and the same lack of progress for several seconds

### Have you considered any alternatives?

_No response_

### Additional context

_No response_