Postpone next alarm slider should have 5 minute increments instead of 1 minute

From Kevin F on 2017/04/10 02:31:55 +0000

Currently the choice is to use the drop down with 15 minute increments, or slider with 1 minute increments. A slider with 5 minute increments (and not so difficult to set at desired value) seems like a more realistic reflection of how people would want to use the slider

Copied from original feature request: