Replace explicit constructor calls with target-typed new() expressions
where the type is already specified on the left side of the assignment.
This is a C# 9+ feature that reduces redundancy.
Files changed:
- Container.cs: field assignments in constructors
- EntityPalette18/112/113.cs: static field initializers
- ChatParser.cs: StringBuilder local variable
- Movement.cs: field assignments in constructor
- PacketPalette18.cs: field initializers
- EnchantmentMapping.cs: field reassignments
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
