Fix displaying favicons in tabs after browser restart
Save icon URL of tabs without QtWebEngine's favicon scheme and host This should fix #456
This basically just removes image://favicon/
from the saved icon URL of tabs since favicons in QtWebEngine
doesn't seem to be cached and reusable after closing the app.
Note: I'm not sure if this worked before and just a regression so it's possible that the proper fix is to re-enable caching of favicons on QtWebEngine
or something. I just don't know how or where that is. I tried to look for it
Edited by Chris Clime