Apply suggestions from code review

Co-authored-by: 冷酔閑吟 <50296129+Jint-lzxy@users.noreply.github.com>
Signed-off-by: MiSumiSumi <dragon511southern@gmail.com>

lua/core/pack.lua

@@ -33,15 +33,13 @@ function Lazy:load_plugins()
 		local list = {}
 		local plugins_list = vim.split(fn.glob(modules_dir .. "/plugins/*.lua"), "\n")
 		local user_plugins_list = vim.split(fn.glob(user_modules_dir .. "/plugins/*.lua"), "\n")
-		if user_plugins_list[1] ~= "" then
-			plugins_list = vim.list_extend(plugins_list, user_plugins_list)
+		if not vim.tbl_isempty(user_plugins_list) then
+			vim.list_extend(plugins_list, user_plugins_list)
 		end
-		if type(plugins_list) == "table" then
-			for _, f in ipairs(plugins_list) do
-				-- fill list with `plugins/*.lua`'s path used for later `require` like this:
-				-- list[#list + 1] = "plugins/completion.lua"
-				list[#list + 1] = f:sub(#modules_dir - 6, -1)
-			end
+		for _, f in ipairs(plugins_list) do
+			-- fill list with `plugins/*.lua`'s path used for later `require` like this:
+			-- list[#list + 1] = "plugins/completion.lua"
+			list[#list + 1] = f:sub(#modules_dir - 6, -1)
 		end
 		return list
 	end

lua/modules/utils/init.lua

@@ -249,11 +249,11 @@ function M.tobool(value)
 	end
 end
 
----@param plugin_name string @Plugin name
+---@param plugin_name string @Name of the plugin
 ---@param opts table @Default options for plugin
----@param isVimPlugin? boolean @If plugin is made by vimscript
----@param extraSetupFunc? function @When the plugin name that calls setup is different from `modules/configs/*.lua`
-function M.load_plugin(plugin_name, opts, isVimPlugin, extraSetupFunc)
+---@param vim_plugin? boolean @If this plugin is a Vimscript one
+---@param setup_callback? function @Provide this if the plugin's setup function is not the usual one
+function M.load_plugin(plugin_name, opts, vim_plugin, setup_callback)
 	isVimPlugin = isVimPlugin or false
 	local ok, custom = pcall(require, "user.modules." .. plugin_name)
 	if ok then