Watchface: uptime - a minimalist monochrome terminal watch face

I got a Venu 4 a while back and could never find a watch face I actually liked,
so I ended up making my own. It's called uptime and it basically looks like a
terminal.

The time sits at the top like a shell prompt with a blinking cursor, and below
it there's a small readout:

```
  > 2:46

  date   mon 15 jun
  hr     72 bpm
  rest   58 bpm
  step   ███████░░░  8420
  bat    █████░░░░░  50%
```

It's all JetBrains Mono on a black background, no colors, just white and grey. I
wanted it to stay calm and readable and not eat battery, so there's no seconds
and the always-on version dims right down so it won't burn in.

It runs on most of the AMOLED watches (Venu, Vivoactive, Forerunner, epix,
fenix 8, MARQ, D2 - 29 in total), and the fonts scale to each screen size.

It's free. Source is on GitHub if you want to poke at it:
github.com/.../garmin-uptime
Store: apps.garmin.com/.../cc5021d5-e1fc-4619-bf1c-5ce478b6b666

First watch face I've built, so happy to hear what you think.