E5248 because of typo in bufferline.lua

[darcyparker]

https://github.com/LunarVim/Neovim-from-scratch/blob/master/lua/user/bufferline.lua#L75

For nvim 0.9, this line should be: fg = { attribute = "fg", highlight = "Visual" }

Otherwise there is an E5248 error when starting nvim. See discussion here: https://github.com/akinsho/bufferline.nvim/issues/724#issuecomment-1501185320

[gnmearacaun]

thank-you very much.

We're v9.0 ready!