fix: remove conflicting light background setting

The bg=light setting was immediately overridden by vim.opt.background = "dark" later in the file.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

dots/.config/nvim/init.lua

@@ -2,7 +2,6 @@ require("nixCatsUtils").setup({ non_nix_value = true }) -- https://github.com/Bi
 
 vim.cmd([[
 set termguicolors
-set bg=light
 hi Normal ctermbg=none guibg=NONE
 ]])