feat(bar): add changing icons based on the time

This commit adds a little Easter egg on the time widget.

Use the `changing_icon` setting to enable this feature.

Based on the current time, the widget will use different icons to
indicate certain activities of the day.

00:00 MOON
06:00 ALARM
06:01 BREAD
06:30 BARBELL
08:00 COFFEE
08:30 CLOCK
12:00 HAMBURGER
12:30 CLOCK_AFTERNOON
18:00 FORK_KNIFE
18:30 MOON_STARS

Cargo.lock

@@ -2729,6 +2729,7 @@ dependencies = [
  "image",
  "komorebi-client",
  "komorebi-themes",
+ "lazy_static",
  "netdev",
  "num",
  "num-derive",