support for converting raw picture to lossy compressed picture before upload

### Your use case

#### What would you like to do?
have an option to convert raw image to lossy image before sending.

#### Why would you like to do it?
I use opencamera which has raw support and I take my pictures in raw format (dng extension).
when I want to send and image to a room I dont need to send it raw so an option to send it compressed would be great.
I think that needs a converter in the app.

#### How would you like to achieve it?
add an option when uoloading a raw image that ask the user if he want to convert the image to lossy png/jpeg format before sending.

### Have you considered any alternatives?

using a converter on phone.
this is a alternative but would be an extra step and would create an extra image that I dont need outside of sending and smaller more compatible image.

### Additional context

_No response_

### Are you willing to provide a PR?

No