feat: paq sync command

lua/setup/init.lua

@@ -10,6 +10,14 @@ local function clone_package_manager()
   end
 end
 
+local function load_paq()
+  vim.cmd.packadd('paq-nvim')
+  local paq = require('paq')
+  local packages = require('setup.packages').get()
+  paq:setup({ lock = vim.fn.stdpath('config') .. '/paq-lock.json' })(packages)
+  return paq
+end
+
 local function install_packages()
   local done = false
   vim.api.nvim_create_autocmd('User', {
@@ -20,12 +28,7 @@ local function install_packages()
     end,
   })
 
-  vim.cmd.packadd('paq-nvim')
-  local paq = require('paq')
-      paq:setup({ lock = vim.fn.stdpath("config") .. "/paq-lock.json" })
-  local packages = require('setup.packages').get()
-
-  paq(packages)
+  local paq = load_paq()
   paq.install()
 
   local to_install = paq.query('to_install')
@@ -64,6 +67,11 @@ vim.api.nvim_create_user_command('InstallAll', function()
   print('\n=== Install Finished ===\n\n')
 end, {})
 
+vim.api.nvim_create_user_command('Sync', function()
+  local paq = load_paq()
+  paq:sync()
+end, {})
+
 vim.api.nvim_create_user_command('FetchLspConfigs', function()
   local base_url = 'https://raw.githubusercontent.com/neovim/nvim-lspconfig/master/lsp/'