🎵 Music timer for sleeping

1. Automate Community
2. Music & Audio

[NON PREMIUM (28 blocks)]
Little flow which will allow to turn off the music after the set time.

Based on Radoslaw Jakubowski's flow : https://llamalab.com/automate/community/flows/34802

Features:
- If no media is playing, turn on Spotify (default) to let you choose a media to play (You can change the music app in the block "Start app" (id 58))
- After the timer, turn off the music progressively to make it stop at the end of the song
- Notification with remaining time and progress bar
- Notification to turn off the flow whenever you want
- Progressively reduce the sound before pausing music

Ver. 2 : Fixed some issues