Revert "* Remove timers.js from build.js inject."

This reverts commit 17bb912927.

build.js

@@ -10,5 +10,5 @@ esbuild.buildSync({
   define: {
     global: "self",
   },
-  inject: ["polyfill.js"],
+  inject: ["timers.js", "polyfill.js"],
 });

timers.js

@@ -0,0 +1,8 @@
+import { setTimeout, setInterval, clearTimeout, clearInterval } from 'timers-browserify'
+
+var scope = typeof self !== "undefined" && self || typeof self !== "undefined" && self || window;
+
+scope.setTimeout = setTimeout;
+scope.setInterval = setInterval;
+scope.clearTimeout = clearTimeout;
+scope.clearInterval = clearInterval;