Renamed autocmd to cmd and made a custom user cmd

lua/taken/core/cmd.lua

@@ -1,9 +1,16 @@
 local autocmd = vim.api.nvim_create_autocmd
 local augroup = vim.api.nvim_create_augroup
+local cmd = vim.api.nvim_create_user_command
 -- Groups
 local nvimhelp = augroup("help_window_right", {})
 local mkdirrun = augroup("MkdirRun", { clear = true })
 
+cmd("ThemeSwitcher", function()
+    require("taken.functions.themes").themeselector()
+end, {
+    desc = "Select a theme",
+})
+
 autocmd("BufWinEnter", {
     group = nvimhelp,
     pattern = { "*.txt" },