Improve twitter.com regex string

Closes #236
Closes #237
Closes #304

src/formatters.nim

@@ -4,7 +4,7 @@ import types, utils, query
 
 const
   ytRegex = re"([A-z.]+\.)?youtu(be\.com|\.be)"
-  twRegex = re"(www\.|mobile\.)?twitter\.com"
+  twRegex = re"(?<![^\/> ])(?<![^\/]\/)(www\.|mobile\.)?twitter\.com"
   igRegex = re"(www\.)?instagram\.com"
   cards = "cards.twitter.com/cards"
   tco = "https://t.co"