add nushell plugin

dot_config/nvim/lua/plugins/nushell.lua

@@ -0,0 +1,30 @@
+return {
+  {
+    "neovim/nvim-lspconfig",
+    opts = {
+      servers = {
+        nushell = {},
+      },
+    },
+  },
+  {
+    "nvim-treesitter/nvim-treesitter",
+    dependencies = {
+      { "nushell/tree-sitter-nu" },
+    },
+    opts = function(_, opts)
+      require("nvim-treesitter.parsers").get_parser_configs().nu = {
+        install_info = {
+          url = "https://github.com/nushell/tree-sitter-nu",
+          files = { "src/parser.c" },
+          branch = "main",
+        },
+        filetype = "nu",
+      }
+
+      if type(opts.ensure_installed) == "table" then
+        vim.list_extend(opts.ensure_installed, { "nu" })
+      end
+    end,
+  },
+}