Make it easy to end all feedback - setting to define when to turn off feedbacks

Taken from: https://source.puri.sm/Librem5/feedbackd/-/issues/55

If a phone gives feedback like sound or vibration it would be useful to offer an easy way for the user to end feedback.

Example 1: The phone plays a long sound to signal that a new SMS arrives. While the sound is playing the user activates the screen and unlocks the phone to look at the sms. While the sms is already perceived on the lock screen or in the notification bar the jingle keeps playing. At least I would love to have a configuration (probably in the phones shell or lock screen settings) to have any feedback end if I e.g. activates the screen, unlock the phone or pull down the notification bar.

Offer a configuration option to end all actual feedback by possible user action like "activate screen", "press volume down", "unlock screen", "pull down notifications", "turn over phone screen down", …, …