refactor: add go plugin

lua/plugins/go.lua

@@ -0,0 +1,20 @@
+return {
+    {
+        "ray-x/go.nvim",
+        dependencies = { -- optional packages
+            "ray-x/guihua.lua",
+            "neovim/nvim-lspconfig",
+            "nvim-treesitter/nvim-treesitter",
+        },
+        opts = {
+            -- lsp_keymaps = false,
+            -- other options
+        },
+        config = function(_lp, opts)
+            require("go").setup(opts)
+        end,
+        event = { "CmdlineEnter" },
+        ft = { "go", "gomod" },
+        build = ':lua require("go.install").update_all_sync()', -- if you need to install/update all binaries
+    },
+}