feat(vim): add the deno lsp to the config

This is a bit tricky due to the filetype of deno being typescript. The
typescript server automatically starts on this filetype.

For now this looks in the root of the project to see if there is a deno.json or
package.json. Based on this, it will pick what one to use.

site-modules/core/files/vim/plugin/lsp.lua

@@ -3,11 +3,16 @@ local lspconfig = require "lspconfig"
 local workspace_library = vim.api.nvim_get_runtime_file("lua", true)
 table.insert(workspace_library, os.getenv "HOME" .. "/Code/src/github.com/AdeAttwood/Configz/definitions/configz.lua")
 
+local function has_file(file)
+  return vim.fn.filereadable(vim.fn.getcwd() .. "/" .. file) == 1
+end
+
 local servers = {
   -- Language servers for the day to day web development, could probably think
   -- about loosing the html and css one and living with typescript, rescript
   -- and emmet
-  tsserver = {},
+  ts_ls = { enabled = has_file("tsconfig.json") },
+  denols = { enabled = has_file("deno.json") or has_file("deno.jsonc") },
   html = {},
   cssls = {},
   marksman = {},