feat(nvim): add avante and split up plugins

modules/programs/nvim/new_plugins/treesitter.nix

@@ -0,0 +1,19 @@
+{ config, lib, pkgs, inputs, ... }:
+
+let
+  inherit (lib) mkEnableOption mkIf readFile;
+in
+{
+  home-manager.users.moritz.programs.nixvim = {
+    plugins.treesitter = {
+      enable = true;
+      folding = true;
+      nixvimInjections = true;
+      settings.indent.enable = true;
+      settings.highlight.enable = true;
+    };
+    performance.combinePlugins.standalonePlugins = [
+      "nvim-treesitter"
+    ];
+  };
+}