Easier share for received files

### Your use case

#### What would you like to do?

When I receive a zip file and want to share it, I need to click on the zip file, then info, then scroll down and select share. This is not intuitive at all (and until 2 minutes ago I used classic element to share/download files, because I did not know that it is possible to do it with element-x).

#### Why would you like to do it?

Because I use element to transfer files.

#### How would you like to achieve it?

Add a share button into the main menu when viewing a non image/video file.

### Have you considered any alternatives?

_No response_

### Additional context

_No response_

### Are you willing to provide a PR?

Yes