Feature: way to let user's know the connector is working

[i-cantbreathe]

right now only way i can know if a connector is scraping is via devtools network tab.

ideally you could populate the list with already scraped pages content but if that's too much work just make the loading icon same as hakuneko

[MikeZeDev]

Classic UI & Fluentcore : There are already spinners for manga list update, clipboard, chapters update. There are downloads progress bars too.
Classic UI got spinning for each image in preview same for Fluent core (when pages are downloading).

I dont see what is currently missing except perhaps, hum, something when we gather pages list .