Updated to 1.21.11 (#47, @metabrixkt)

Main features work, though some features may be broken (e.g. class viewer, due to some changes in mapping-io).

Ported to 1.21.9.

• Removed UI inspector, due to the code breaking (and it not being very useful anyways)
• Removed owo-ui component event counter

This is very lightly tested, please report any bugs you see!

• Updated to 1.21
• Support for the old dump format (which for a long time hasn't been used) has been removed
• NBT locking has been removed
• The NBT inspector has been adapted to fit item stack components

Straight-forward port to 1.20.3/1.20.4.

• Fix UTF-8 encoding (Kas-tle, #35)
• Remove translations from file dialogs (mfw tinyfiledialogs)
• NBT locking is now disabled by default
• NBT tags can now be copied in the NBT inspector (#37)
• Added support for dumping server queries (Benonardo, #38)
• Some minor remapping issues should be fixed