Alarm: improve preview UX

[liamcharger]

This PR improves the user experience when viewing the time until the alarm goes off.

Previously, it was a navy blue rectangle with no indication of how to dismiss the dialog. It’s not hard to figure out how to dismiss it, but as the InfiniTime vision states, it should be predictable and easy to use.

I think the updated UI can be improved, so any feedback is welcome.

Before: After:

[github-actions[bot]]

Build size and comparison to main:

Section	Size	Difference
text	377208B	192B
data	940B	0B
bss	63548B	0B

[JF002]

Hi @liamcharger ! If it' s not too much to ask, could you provide a before/after picture (from a camera or using InfiniSim) of your changes?

[liamcharger]

Sure, I've just updated my original comment!

[minacode]

Nice idea to make it fit better to the rest :) I think it would look good if you align the hours, minutes, ... vertically like they are in the previous version. That makes it easier to understand.