fix: chmod +x only for user

lua/config/remap.lua

@@ -26,7 +26,7 @@ vim.keymap.set("i", "<C-c>", "<Esc>")
 
 vim.keymap.set("n", "<leader>f", vim.lsp.buf.format)
 
-vim.keymap.set("n", "<leader>x", "<cmd>!chmod +x %<CR>", { silent = true })
+vim.keymap.set("n", "<leader>x", "<cmd>!chmod u+x %<CR>", { silent = true })
 vim.keymap.set("n", "<leader>ng", ":lua require('neogen').generate()<CR>")
 vim.keymap.set("n", "<leader>t", "<cmd>TroubleToggle<CR>")