Search: try to match the email address too.

src/requests/search.cr

@@ -28,6 +28,8 @@ class AuthD::Request
 								else
 									pattern =~ full_name.as_s
 								end
+							end || u.contact.email.try do |email|
+								pattern =~ email
 							end
 						Baguette::Log.debug "#{u.login} matches #{pattern}"
 						matching_users << u.to_public