Use default nvim background detection instead of lumen on startup

modules/misc/nvim/lua/plugins/colorscheme.lua

@@ -44,7 +44,11 @@ return {
 
 	{
 		"vimpostor/vim-lumen",
-		lazy = false,
-		priority = 1000,
+		event = "VeryLazy",
+		init = function()
+			-- keep vim's default behavior of checking the terminal's colors
+			-- Only use lumen to detect runtime changes (that's why VeryLazy is used).
+			vim.g.lumen_startup_overwrite = 0
+		end
 	},
 }

modules/misc/nvim/lua/settings.lua

@@ -113,10 +113,3 @@ vim.api.nvim_create_autocmd('TextYankPost', {
 		})
 	end,
 })
-
-
-if vim.call("has", "wsl") == 1 then
-	-- Lumen takes 170ms on windows and I only use the windows laptop at work, with light mode.
-	vim.g.lumen_startup_overwrite = 0
-	vim.opt.background = "light"
-end