Compatibility with Neovim 0.10

[IngoMeyer441]

Neovim nightly has made many changes to highlighting groups and the default colorscheme. Unfortunately, this also affects vim-one (see Neovim issue #26378 for more details). Are there any plans to support the upcoming release of Neovim 0.10?

I already tried to source the old vim colorscheme after hi clear as suggested in the issue, but this doesn't help. The main problem are the changed highlighting group names. For example, Pmenu seems to be NormalFloat now. Probably, only some highlight links need to be added, but I didn't find a complete list of all needed changes yet.