4.0.0.4-release :+1:

1. Issue when user disable update check, result addon not load.
2. Issue where user in full screen not able back to window mode with
previous size.
3. Add file and media validation:
3.1 Accept video file, not audio
3.2 Drag n Drop in Subtitle issue (allow not subtitle file can added.
3.3 Drag n Drop in Attachment, now check font magic number rather then
file extension (prevent wrong file)
4. Console now capable to save log and clear
4.1 Console change font to Consolas.
5. Updated README.md :8ball: