feat: improve language bindings

Co-authored-by: ObserverOfTime <chronobserver@disroot.org>

cli/src/generate/templates/grammar.js

@@ -0,0 +1,11 @@
+/// <reference types="./types/dsl" />
+// @ts-check
+
+module.exports = grammar({
+  name: "LOWER_PARSER_NAME",
+
+  rules: {
+    // TODO: add the actual grammar rules
+    source_file: $ => "hello"
+  }
+});