2.0.0+1.19.2: 2.0.0! Fixes and improvements

- New config format (v3), old (v2) configs will be automatically updated to it.
- Rewritten support for markdown and legacy formatting (aka &X) to make it more relable
- Replaced operator level/permission checks with more dynamic predicates, allowing way more flexibility, check https://github.com/Patbox/PredicateAPI for more info
- You can change styles via permission options (for LuckPerms it's Meta values), using `styled_chat.<path>`,
  where `<path>` is dot separated key names from style config (example `styled_chat.message_formats.chat`)
- You can now change style per player with `/styledchat set` command
- You can now enable chat formatting per style instead of it being only global + permission
- You can change style of pet death message, spoiler and urls with predicate-based styles (it was previously global)
- Fixed few bugs, including empty messages not working correctly