Local Storage improvements

[breck7]

If we ever get around to doing a new version, some ideas:

• Have a wildcard * subdomain on all versions (*.v21.ohayo.computer) etc. You can invent your own, and they basically become the "project name".
• Switch from localStorage API to IndexedDB has much higher limits.

Reference:
https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Browser_storage_limits_and_eviction_criteria
https://storage-quota.glitch.me/