Animation when opening discussion

### Your use case

#### What would you like to do?
I would like to add a charging animation when opening a cached room

#### Why would you like to do it?
Because there is a brief lag when opening them which makes the flow less smooth

#### How would you like to achieve it?
Show the animation until the whole room is fetched and then display it

### Have you considered any alternatives?

_No response_

### Additional context

_No response_

### Are you willing to provide a PR?

No