This pull request renames the textures of water and lava to more closely follow the MineClone 2 naming convention.
The code has also been changed to now reflect these new names.
Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/3758
Reviewed-by: the-real-herowl <the-real-herowl@noreply.git.minetest.land>
Co-authored-by: FossFanatic <fossfanatic@noreply.git.minetest.land>
Co-committed-by: FossFanatic <fossfanatic@noreply.git.minetest.land>
