Fix issue: bad image quality

* now you can sent a 5 min video length.
* now you can send any kind of file ! just copy it from Files app or any other app and you will retrieve it in the list :)

* Now you can send 1 minute video.
 * Now you can see the upload progress.
 * Fix bug sending media when iCloud Photo library is activated.
 * Fix bug when sending video without audio.

* Now you can send 1 minute video.
 * Now you can see the upload progress.
 * Fix bug sending media when iCloud Photo library is activated.
 * Fix bug when sending video without audio.

Now you can send up to 20 seconds videos.

Now you can hide your videos too !