Package refactoring

[Willy-Chan]

Initial package refactoring for the new dashboard

• implemented serve.js / experiment.js / index.js serving configuration
• completed migration to google cloud buckets (deleted local assets)

TODO:

• Implement i18next translation framework
• Break up the experimentHelpers file into separate trials

KNOWN ISSUES:

• The "progress bar" seems to be duplicating on my end periodically, with a functioning version on top and a duplicate below, the issue seems to come from this part in jsPsych.js:

  show_progress_bar: true,
  auto_update_progress_bar: true,
  message_progress_bar: `${i18next.t('progressBar')}`,
  on_finish: () => {
    document.body.style.cursor = "auto";
  },
});```

I have no clue as to how to fix this, as it seems to be an issue related to the jspsych module in the new package refactoring.

- [ ] As far as I can tell, the correct parameters are being logged, but I keep encountering the error below and I'm not sure what's causing it - is it something related to ANB or the new refactoring?
![image](https://github.com/yeatmanlab/roar-anb/assets/106504264/d1c71b34-c6a4-4011-9466-c7d8b4a97cb3)

- [ ] @miafuen We should make sure that all the correct parameters are being logged in the firebase