Play selected segment

[olekenneth]

Description

To will make you able to play the selected segment and also the complete audio.

WIP: Stop button is not implemented correctly.

Checklist:

• [ ] My code has been linted to follow the code style of this project
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works