Reworking This client isn't compatible with the media and the server isn't sending a compatible media format message

[sourpatched]

This client isn't compatible with the media and the server isn't sending a compatible media format isn't that helpful since this could be a few reasons why

Typically this error message is displayed for one of the following reasons:

Transcoding has been disabled on the server.
The media files are inaccessible or unreadable by the jellyfin user.
    Verify the media is mounted correctly to the filesystem.
    Verify the permissions are such that the jellyfin user has a minimum of read+execute permissions on all directories and read permissions on all media files.
Hardware acceleration has been enabled, but not properly configured.
    Check the ffmpeg logs for specific errors.
    Hardware acceleration can be disabled temporarily to confirm.
A reverse proxy is being used, but is not properly configured.
    Check if playback works when connecting directly to Jellyfin.
    Consult our networking documentation for configuration examples for most popular proxy servers.

Could the message be changed to something like:
Error with Hardware acceleration
File not found
FFMPEG error
Reverse proxy play back error
File is not compatible with the player

@thornbill @joshuaboniface @anthonylavado