Flan 1.10.5

• Update to 1.21
• Removed frostwalker permission due to changes to the
  enchantment system making it impossible to determine from what enchant modifications now come from.
  It now uses the place permission.
  - Cache chunks for claim display and don't load unloaded chunks which should solve some performance issue
  with large claims etc.
  - Fix placeholders not working for enter/leave messages
  - Add entity attack and entity use ignore list for claims similar to existing item, block ignore lists
  Entitites in that list can be interacted/attacked in that claim regardless of permission
  - Add command for the ignore list:
  /ignoreList (add | remove) <type> <value>

For past versions see: https://github.com/Flemmli97/Flan/blob/1.21/Changelog.md