Refactor domain block checks (#11268)

app/lib/tag_manager.rb

@@ -24,13 +24,16 @@ class TagManager
 
   def same_acct?(canonical, needle)
     return true if canonical.casecmp(needle).zero?
+
     username, domain = needle.split('@')
+
     local_domain?(domain) && canonical.casecmp(username).zero?
   end
 
   def local_url?(url)
     uri    = Addressable::URI.parse(url).normalize
     domain = uri.host + (uri.port ? ":#{uri.port}" : '')
+
     TagManager.instance.web_domain?(domain)
   end
 end