fix: don't complete in prompt ft

lua/lvim/core/cmp.lua

@@ -130,6 +130,10 @@ M.config = function()
   lvim.builtin.cmp = {
     active = true,
     enabled = function()
+      local buftype = vim.api.nvim_buf_get_option(0, "buftype")
+      if buftype == "prompt" then
+        return false
+      end
       return lvim.builtin.cmp.active
     end,
     confirm_opts = {