un-object orient some functions

after/plugin/cmp.lua

@@ -3,7 +3,7 @@ if not status_ok then
 	return
 end
 
-local has_words_before = function()
+local function has_words_before()
   unpack = unpack or table.unpack
   local line, col = unpack(a.nvim_win_get_cursor(0))
   return col ~= 0 and a.nvim_buf_get_lines(0, line - 1, line, true)

after/plugin/lsp.lua

@@ -10,7 +10,7 @@ local function lsp_attach(client, bufnr)
     vim.fn.sign_define(name, { text = text, texthl = name })
   end
 
-  local map = function(m, lhs, rhs)
+  local function map(m, lhs, rhs)
     local opts = { remap = false, silent = true, buffer = bufnr }
     vim.keymap.set(m, lhs, rhs, opts)
   end

after/plugin/telescope.lua

@@ -35,7 +35,7 @@ telescope.setup {
     preview = {
       -- add image previews via chafa
       mime_hook = function(filepath, bufnr, opts)
-        local is_image = function(filepath)
+        local function is_image(filepath)
           local image_extensions = { -- supported image formats
             'png',
             'jpg',