Fix cut block in Video Mode.
Fix video preview not opening automatically when a video is loaded in Video Mode.
Fix time-locked icon visible but disabled in Video Mode.
Fix video files without audio not working correctly.
Fix file name not signalling change after silence is adjusted.
Improve performance of Transcription Panel on big files.
Improve Video Mode performance by loading less thumbnails.
Improve API error when compute server is not installed.
Add support for Windows Media Player by exporting ACC format instead of Mp3 in Video Mode.
In Video Mode keep video extension after load.
