add gen plugin

pkgs/nvchad/custom/configs/gen.lua

@@ -0,0 +1,10 @@
+local opts = {
+  model = "deepseek-coder:6.7b",
+  display_mode = "float",
+  show_prompt = true,
+  show_model = true,
+  no_auto_close = false,
+  debug = false,
+}
+
+return opts