Added new user event for loading themes with lazy

Signed-off-by: Taken <taken@mairimashita.org>

lua/taken/functions/themes.lua

@@ -1,6 +1,8 @@
 local M = {}
 
 function M.themeselector()
+    vim.api.nvim_exec_autocmds("User", { pattern = "ThemeSwitcher", modeline = false })
+
     local configDir = vim.fn.stdpath("config")
     local prefsFile = configDir .. "/lua/taken/prefs.lua"
     local oldstring = 'M.colorscheme = .*"'