Clean up (#3015)

* tld-cn: add more cn TLDs

* mastercard: remove redundant priceless.com

it appears twice

* thescoregroup: remove redundant juliamiles.com

it appears twice

* visa: remove redundant visainfinite.ca

it appears twice

* update category-porn

to lowercase, include pornhub, dedup, sort

* clean up white spaces

data/taboola

@@ -1,4 +1,4 @@
-# Taboola uses this single domain for both official website and ads serving. 
+# Taboola uses this single domain for both official website and ads serving.
 # Blocking the following domain will prevent taboola ads from displaying,
 # but also cut the connection to Taboola website.
 taboola.com