Disable <Enter> select top autocomplete option in nvim-cmp

cmp.lua

-- store in ~/.config/nvim/lua/plugins/cmp.lua

local cmp = require("cmp")
local cmp_active = true

local function toggle_cmp(enable)
  if enable then
    cmp_active = true
    cmp.setup.buffer({ enabled = true })
  else
    cmp_active = false
    cmp.setup.buffer({ enabled = false })
  end
end

-- Re-enable cmp when entering insert mode
vim.api.nvim_create_autocmd("InsertEnter", {
  callback = function()
    -- "try" to swallow error when not in a normal buffer (e.g., TelescopePrompt etc.)
    pcall(function()
      toggle_cmp(true)
    end)
  end,
})

return {
  "hrsh7th/nvim-cmp",
  opts = {
    mapping = {
      -- Make it so suggestions must be selected to confirm with Enter.
      -- Allows Enter to be used for newlines.
      ["<CR>"] = cmp.mapping({
        i = function(fallback)
          if cmp.visible() and cmp.get_active_entry() then
            cmp.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false })
          else
            fallback()
          end
        end,
      }),

      -- Map Ctrl+Enter to confirm active entry.
      ["<C-CR>"] = cmp.mapping.confirm({ select = true }),

      -- Map Ctrl+Space to close cmp menu instead, so you don’t have to Ctrl+C twice.
      -- Closes cmp menu until InsertEnter if active, or re-enables cmp menu.
      ["<C-Space>"] = cmp.mapping(function(fallback)
        if cmp_active then
          if cmp.visible() then
            cmp.close()
            toggle_cmp(false)
          else
            fallback()
          end
        else
          toggle_cmp(true)
        end
      end, { "i" }),
      -- Additional mappings can go here.
      ...,
    },
  },
}