Cleanup the bootstrapping file to make it easier to interpret

[mitchdav]

This PR is largely a quality of life improvement, with the goal to make it easier for developers to interpret what is happening when a NativePHP application boots.

The real functionality of the package, which is the bootstrapping logic, has gone from over 100 lines down to just this:

  private async bootstrapApp(app: Electron.CrossProcessExports.App) {
    await app.whenReady();

    const config = await this.loadConfig();

    this.setDockIcon();
    this.setAppUserModelId(config);
    this.setDeepLinkHandler(config);
    this.startAutoUpdater(config);

    await this.startElectronApi();

    state.phpIni = await this.loadPhpIni();

    await this.startPhpApp();
    await this.startQueueWorker();
    await this.startWebsockets();
    this.startScheduler();

    await notifyLaravel("booted");
  }

I have split the changes up into separate and relatively isolated commits, to try and make it easier to follow.

I have bumped the menubar dependency, and added missing eslint dependencies that were preventing it from running.

I have removed the yarn.lock file, since it's unclear whether the package is using yarn or NPM.

If there are any changes you would like made before this could be approved, please let me know as I'm actively keen to contribute to NativePHP, and have a lot more ideas that will stem off of this PR.

[simonhamp]

Thanks for this @mitchdav 🎉