BUGFIX: Running scripts may be loaded before main UI

[catloversg]

When we load running scripts, those scripts may run before the main UI is loaded. In that case, anything that interacts with the router will fail to run. For example, Singularity APIs that call Router.toPage() will throw an error, and that error may not be shown to the player because the main UI is not loaded.

How to reproduce:

• Join Daedalus.
• Run test code.
• Reload and check the console.

If you cannot reproduce it consistently, you can forcefully delay the main UI: In src\ui\LoadingScreen.tsx, add another promise (e.g., new Promise((resolve) => setTimeout(resolve, 1000))) to [initSwc(), Engine.load(saveData)].

Test code:

/** @param {NS} ns */
export async function main(ns) {
  try {
    ns.singularity.workForFaction("Daedalus", "hacking");
  } catch (e) {
    console.error(e);
  }
  while (true) {
    await ns.sleep(1000);
  }
}

Closes #1707.

[d0sboots]

This fixes a bug, so if push comes to shove I'll accept it. However, this is only fixing it for the specific case of script loading, it's not fixing the root of the issue. For instance, this won't fix the game (sometimes) crashing at load, or our tests flaking.

Edit: What I'm hoping for is a way for the router to actually be initialized before everything, in some guaranteed deterministic fashion.