fixed tab key

init.lua

@@ -34,8 +34,5 @@ vim.keymap.set('n', '<leader>fg', builtin.live_grep, {})
 vim.keymap.set('n', '<leader>fb', builtin.buffers, {})
 vim.keymap.set('n', '<leader>fh', builtin.help_tags, {})
 
-
--- Configura la mappatura di tasti in inserimento per accettare l'autocompletamento con Tab
-vim.api.nvim_exec([[
-    inoremap <expr> <Tab> pumvisible() ? "\<C-n>" : "\<C-r>=coc#_select_confirm()\<CR>"
-]], false)
+vim.api.nvim_set_keymap('i', '<Tab>', 'pumvisible() ? "<C-n>" : "<Tab>"', { expr = true, noremap = true })
+vim.api.nvim_set_keymap('i', '<S-Tab>', 'pumvisible() ? "<C-p>" : "<C-h>"', { expr = true, noremap = true })