fix: update neovim configs

dotfiles/nvim/lua/custom/init.lua

@@ -3,7 +3,7 @@ vim.opt.colorcolumn = "80"
 vim.g.copilot_no_tab_map = true
 vim.api.nvim_set_keymap("i", "<C-o>", 'copilot#Accept("<CR>")', { silent = true, expr = true, noremap = true, script = true })
 vim.wo.relativenumber = true
-vim.g.scrolloff = 8
+vim.opt.scrolloff = 8
 
 -- Auto-reload files when changed externally
 vim.opt.autoread = true