Updated autorun logic to resolve issues with loading modules on Firefox

Sometimes Firefox decides to load different groups of content scripts
asynchronously, causing our trick with `requestAnimationFrame` to miss
everything. To prevent this, I decided to just attempt to autorun
everything on each definition using `setTimeout`.

I've also tried to use `queueMicrotask` to put autorun logic right
between different groups of modules, but this trick was only working on
Firefox and completely breaking on Chromium. I sure love browsers!

src/content/deps/amd.ts

@@ -2,21 +2,38 @@ import { amdLite } from "amd-lite";
 
 const originalDefine = amdLite.define;
 
+/**
+ * Throttle timer to make sure only one attempt at loading modules will run for a batch of loaded scripts.
+ */
+let throttledAutoRunTimer: NodeJS.Timeout | number | undefined;
+
+/**
+ * Schedule the automatic resolving of all waiting modules on the next available frame.
+ */
+function scheduleModulesAutoRun() {
+  clearTimeout(throttledAutoRunTimer);
+
+  throttledAutoRunTimer = setTimeout(() => {
+    amdLite.resolveDependencies(Object.keys(amdLite.waitingModules));
+  });
+}
+
 amdLite.define = (name, dependencies, originalCallback) => {
-  return originalDefine(name, dependencies, function () {
+  originalDefine(name, dependencies, function () {
     const callbackResult = originalCallback(...arguments);
 
     // Workaround for the entry script not returning anything causing AMD-Lite to send warning about modules not
     // being loaded/not existing.
     return typeof callbackResult !== 'undefined' ? callbackResult : {};
-  })
+  });
+
+  // Schedule the auto run on the next available frame. Firefox and Chromium have a lot of differences in how they
+  // decide to execute content scripts. For example, Firefox might decide to skip a frame before attempting to load
+  // different groups of them. Chromium on the other hand doesn't have that issue, but it doesn't allow us to, for
+  // example, schedule a microtask to run the modules.
+  scheduleModulesAutoRun();
 }
 
 amdLite.init({
   publicScope: window
 });
-
-// We don't have anything asynchronous, so it's safe to execute everything on the next frame.
-requestAnimationFrame(() => {
-  amdLite.resolveDependencies(Object.keys(amdLite.waitingModules))
-});