fix(nvim): temporary rename tsserver to ts_ls in lspconfig

see neovim/nvim-lspconfig#3232

nvim/lua/mnmx/plugins/mason-lspconfig.lua

@@ -3,6 +3,7 @@ local handlers = {
   -- and will be called for each installed server that doesn't have
   -- a dedicated handler.
   function(server_name) -- default handler (optional)
+    server_name = server_name == 'tsserver' and 'ts_ls' or server_name
     require("lspconfig")[server_name].setup {}
   end,