get Name and Icon from Search URL

[532910]

addon should get Name and Icon from Search URL, like https://github.com/soufianesakhi/firefox-search-engines-helper does

[evilpie]

We already add the favicon.ico URL, this extension uses https://www.google.com/s2/favicons?domain=, which is a Google service so I won't use that.

They also out-fill the name based on just the URL. I don't think this very useful, people can just enter this themselves.