[NeoVim] add gopls

.config/nvim/fnl/settings/lspconfig.fnl

@@ -3,6 +3,7 @@
 
 (local servers
   [:eslint
+   :gopls
    :ltex
    :pyright
    :sumneko_lua
@@ -75,6 +76,5 @@
                                              (fallback)))
                           [:i :s])})
    :sources [{:name "luasnip"}
-             {:name "nvim_lsp"}
-             {:name "omni"}]
+             {:name "nvim_lsp"}]
    :formatting {:format (lspkind.cmp_format {:mode "symbol_text"})}})