Neovim LSP configuration part is outdated and fails in some cases

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Due to compatibility with npm, there may now be a package.json in the Deno project, so denols and ts_ls may be enabled at the same time.
Neovim LSP configuration

local nvim_lsp = require('lspconfig')
nvim_lsp.denols.setup {
  on_attach = on_attach,
  root_dir = nvim_lsp.util.root_pattern("deno.json", "deno.jsonc"),
}

nvim_lsp.ts_ls.setup {
  on_attach = on_attach,
  root_dir = nvim_lsp.util.root_pattern("package.json"),
  single_file_support = false
}