Kusto: Move loading @kusto/language-service off the main thread (#72006)

fix(kusto): move kusto off the main thread to prevent conflict with window.System

public/lib/monaco-languages/kusto.ts

@@ -1,64 +1,5 @@
-declare global {
-  interface Window {
-    __monacoKustoResolvePromise: (value: unknown) => void;
-    __grafana_public_path__: string;
-  }
-}
-
-function loadScript(script: HTMLScriptElement | string): Promise<void> {
-  return new Promise((resolve, reject) => {
-    let scriptEl: HTMLScriptElement;
-
-    if (typeof script === 'string') {
-      scriptEl = document.createElement('script');
-      scriptEl.src = script;
-    } else {
-      scriptEl = script;
-    }
-
-    scriptEl.onload = () => resolve();
-    scriptEl.onerror = (err) => reject(err);
-    document.body.appendChild(scriptEl);
-  });
-}
-
-const loadMonacoKusto = () => {
-  return new Promise((resolve) => {
-    window.__monacoKustoResolvePromise = resolve;
-
-    const script = document.createElement('script');
-    script.innerHTML = `require(['vs/language/kusto/monaco.contribution'], function() {
-      window.__monacoKustoResolvePromise();
-    });`;
-
-    return document.body.appendChild(script);
-  });
-};
-
-export default async function loadKusto() {
-  const monacoPath = (window.__grafana_public_path__ ?? 'public/') + 'lib/monaco/min/vs';
-
-  const scripts = [
-    [`${monacoPath}/language/kusto/bridge.min.js`],
-    [
-      `${monacoPath}/language/kusto/kusto.javascript.client.min.js`,
-      `${monacoPath}/language/kusto/newtonsoft.json.min.js`,
-      `${monacoPath}/language/kusto/Kusto.Language.Bridge.min.js`,
-    ],
-  ];
-  let promise = Promise.resolve();
-
-  for (const parallelScripts of scripts) {
-    await promise;
-
-    // Load all these scripts in parallel, then wait for them all to finish before continuing
-    // to the next iteration
-    const allPromises = parallelScripts
-      .filter((src) => !document.querySelector(`script[src="${src}"]`))
-      .map((src) => loadScript(src));
-
-    await Promise.all(allPromises);
-  }
-
-  await loadMonacoKusto();
+export default function loadKusto() {
+  return new Promise<void>((resolve) =>
+    __non_webpack_require__(['vs/language/kusto/monaco.contribution'], () => resolve())
+  );
 }