Bug 27476: misc about:torconnect fixes and polish
- about:tor fix to prevent showing 'something went wrong page' after about:torconnect bootstrap
- directly including tor-browser's onion-pattern xhtml/css rather than duplicating
- about:tor polish: replaced png with svg icons for ddg (from ddg), mail and arrow (photon UI included from firefox)
Closes #40036 (closed)
Edited by Matthew Finkel