refactor: new http client method

BetterHud 1.12.1

Notice

• BetterHud can now compatible with 1.21.5 without some significant change or break.
• But this feature is not compatible with 1.21.5, and since it can cause resource pack collision with other plugin, will be removal.

relocate hotbar item (block)

Add

• 1.21.5 support
• Add 'packs' folder for external BH pack
• Add 'animation-type' in image setting.

sequence_image:
  type: sequence
  files:
    - "sequence/frame_0.png:2"
    - "sequence/frame_1.png:2"
    - "sequence/frame_2.png:2"
    - "sequence/frame_3.png:2"
    - "sequence/frame_4.png:2"
    - "sequence/frame_5.png:2"
    - "sequence/frame_6.png:2"
    - "sequence/frame_7.png:2"
  setting:
    animation-type: play_once

• Add these placeholders (Bukkit, Fabric)

burning
entity_burning
entity_frozen

Fix

• Kotlin 2.1.20
• Fix popup logic to support BetterHud-MMOCore
• Use more optimized map to text element
• Make a Folia adapt at some entity-related placeholder
• Fix player and entity handling bug with some platform (Spigot, Folia)
• Fix mmocore_stat

Restore fabric platform CI temporary

Fix player and entity handling bug with some platform (Spigot, Folia)

Rename ambiguous option

1.21.5 support for Bukkit

Support external pack folder (packs)