Generate extension-api .d.ts and .js files using tsc (#1387)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

src/common/utils/debouncePromise.ts

@@ -4,6 +4,6 @@ export function debouncePromise<T, F extends any[]>(func: (...args: F) => T | Pr
   let timer: NodeJS.Timeout;
   return (...params: any[]) => new Promise((resolve, reject) => {
     clearTimeout(timer);
-    timer = setTimeout(() => resolve(func.apply(this, params)), timeout);
+    timer = global.setTimeout(() => resolve(func.apply(this, params)), timeout);
   });
 }