ADBLK-28: Review blocking of img1.wsimg.com

The domain img1.wsimg.com was added to my blocklists quite a while ago in 423a33d.

It's used to host images for GoDaddy hosted sites, but crucially was also being used to inject unwanted tracking code without the site owner (much less the user) giving consent as part of GoDaddy's Real User Metrics (RUM) program.

At the time it came to my attention, the result was that it had broken a whole load of people's sites, preventing other scripts and images from loading.

More details here: https://www.igorkromin.net/index.php/2019/01/13/godaddy-is-sneakily-injecting-javascript-into-your-website-and-how-to-stop-it/

That was a couple of years ago, and blocking that domain does cause collateral damage - GoDaddy users will find their dashboard doesn't work properly, and blogs hosted with GoDaddy may not be able to serve images (as per https://github.com/bentasker/adblocklists/issues/3).

It'd be worth having a poke about and seeing whether GoDaddy still do this, with an eye to either

- Removing the block completely
- Refining the block so it catches their injected JS without blocking images/desirable content