Add Pomodoro functionality

[jiri-janousek]

📌 Hello there! This feature request has been selected to be voted for by Nuvola users.

Anyone can update its description to make it more appealing before the voting starts in February 2021.

• 👍 Successful feature requests will be prioritized during Nuvola development.
• 👎 Unsuccessful feature requests will be closed.
• 👉 Follow ticket #678 for more details and to provide feedback on the voting process.

Feature description

Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s. The technique uses a timer to break down work into intervals, traditionally 25 minutes in length, separated by short breaks.

The Pomodoro feature adds two modes:

• Music playing during work intervals: When a work interval starts, music playback is resumed. When a break starts, music playback is paused. This mode could be used with deep focus playlists to focus during work intervals and silence to recover during breaks. Start music playback when working.
• Music playing during breaks: When a break interval starts, music playback is resumed. When a working interval starts, music playback is paused. This mode could be used with refreshing playlists to recover during breaks.

[jiri-janousek]

📌 Hello there! This feature request has been selected to be voted for by Nuvola users.

Anyone can update its description to make it more appealing before the voting starts in February 2021.

• 👍 Successful feature requests will be prioritized during Nuvola development.
• 👎 Unsuccessful feature requests will be closed.
• 👉 Follow ticket #678 for more details and to provide feedback on the voting process.