add core configuration

home-manager/modules/neovim/plugins/treesitter.nix

@@ -0,0 +1,19 @@
+{config, ...}: {
+  programs.nixvim.plugins.treesitter = {
+    enable = true;
+    nixvimInjections = true;
+    settings = {
+      indent.enable = true;
+      incremental_selection = {
+        enable = true;
+        #        keymaps = {
+        #          init_selection = "<c-space>";
+        #          node_incremental = "<c-space>";
+        #          scope_incremental = "<c-s";
+        #          node_decremental = "<c-backspace>";
+        #        };
+      };
+      highlight.enable = true;
+    };
+  };
+}