[BUG] Time left not reset after screen lock when "do not disturb" mode is active

[bNobo]

Describe the bug
Time left not reset after screen lock when "do not disturb" mode is active

To Reproduce
Steps to reproduce the behavior:

1. Activate "do not disturb" mode (note time left before locking)
2. Lock screen
3. Unloack screen
4. Time left before locking is not reset

Expected behavior
Time left should be reset to the value selected by the user. (we suppose the user was not in front of their screen when it was locked).

Desktop (please complete the following information):

• Windows version: 10
• Application version [e.g. 2.0.0]: 2.3.1