`mcl_vars.hud_type_field` is introduced to determine the right HUD element type field to use. All mods adding HUDs, together with their `mod.conf` files, are changed accordingly to silence the warnings.
Reviewed-on: https://git.minetest.land/VoxeLibre/VoxeLibre/pulls/4965
Reviewed-by: teknomunk <teknomunk@protonmail.com>
Co-authored-by: Mikita Wiśniewski <rudzik8@protonmail.com>
Co-committed-by: Mikita Wiśniewski <rudzik8@protonmail.com>
