Homograph Attack Bypass [ Tested on Linux & Windows ]

##Summary: at #175286 you has been patched, and i try it work, but i've another way to bypass it. when we add a site to our Homepage with `@`, it's not validate a url properly, make sure it's display the punycode. ##Products affected: Brave 0.18.36 ( Linux & Windows ) ##Steps To Reproduce: 1. In browser add homepage with IDN `@ebаy.com/` 1. now close and open browser again 1. you can see it's redirect to http://xn--eby-7cd.com/ {F221533} ##References: https://hackerone.com/reports/175286 ##Video https://youtu.be/aCDeZRdRCuk (unlisted)