add: unread reply monitor with red favicon, red line, quote distinction, checkbox

[plebeius-eth]

I think this can be done like 4chan.

• red line to separate read replies from unread replies
• favicon with white exclamation point to signal unread reply not quoting the user
• favicon with red exclamation point to signal unread reply quoting the user
• unread reply count in document title
• checkbox to enable/disable this feature (not sure if the API could have useComment().reset() for the Update button and timer)

[plebeius-eth]

Esteban Abaroa, [Sep 8, 2023 at 6:45:28 PM]:
seems like the use-unread-reply-count code is buggy, sometimes when I load the page it seems to get the wrong data from the db
possibly same thing is happening with the unread notification count
I noticed sometimes when I load the page it's incorrect, then if I refresh it's correct again, not sure why, I guess how I'm loading the data from indexeddb is wrong sometimes
it only happens like 5% of the time so it's difficult to debug