Add 'currently sleeping' status indicator

[lokka30]

Suggestion

A per-world status indicator on the action bar and/or boss bar that shows how many people are sleeping

Suggested on spigot by https://www.spigotmc.org/members/michelle1492.1771172/

Objectives

• Per-world action bar and/or boss bar status indicator
• Auto-disable bar locations if the MC server version doesn't implement them
• Configurable message in settings.yml
  • Translation of legacy color codes from the config string
  • Placeholders for world name, player sleeping count, online player count, percentage sleeping

Concerns

• Vanished players support
  • We don't want to expose the actual player count, only the amount of online players that the player can see (Player#canSee iirc). But also handle cases e.g. where 1 remaining person who isn't sleeping is vanished. Vanish plugins should be tagging them as sleepingIgnored anyway.
• Feature creep.

[lokka30]

I'm rather unsure about adding this feature, but steering on the side of being in favor of adding it, purely concerning keeping the plugin as thin as it can be.

[lokka30]

Awaiting community feedback on this. If you have any thoughts, please let me know below or on the Discord (use other-lokka30-plugins channel). Cheers