Updating js plugins

public/plugins/mustache/test/module-systems/deno-test.ts

@@ -0,0 +1,16 @@
+import { assertEquals } from "https://deno.land/std@0.51.0/testing/asserts.ts";
+import mustache from "../../mustache.mjs";
+
+const view = {
+  title: "Joe",
+  calc: function() {
+    return 2 + 4;
+  }
+};
+
+Deno.test("can use mustache", () => {
+  assertEquals(
+    mustache.render("{{title}} spends {{calc}}", view),
+    "Joe spends 6"
+  );
+});