Core/Chat: Unify chat hyperlink parsing (PR #22417)

- Validate most link properties all the time
- If enabled, also validate link text (needs locale)
- Instead of blocking the entire message, sanitize it
- Apply filtering to DND/AFK messages. Closes #22399

(cherry picked from commit f27284594b)

src/common/Utilities/Util.cpp

@@ -68,40 +68,6 @@ Tokenizer::Tokenizer(const std::string &src, const char sep, uint32 vectorReserv
     }
 }
 
-void stripLineInvisibleChars(std::string &str)
-{
-    static std::string const invChars = " \t\7\n";
-
-    size_t wpos = 0;
-
-    bool space = false;
-    for (size_t pos = 0; pos < str.size(); ++pos)
-    {
-        if (invChars.find(str[pos])!=std::string::npos)
-        {
-            if (!space)
-            {
-                str[wpos++] = ' ';
-                space = true;
-            }
-        }
-        else
-        {
-            if (wpos!=pos)
-                str[wpos++] = str[pos];
-            else
-                ++wpos;
-            space = false;
-        }
-    }
-
-    if (wpos < str.size())
-        str.erase(wpos, str.size());
-    if (str.find("|TInterface")!=std::string::npos)
-        str.clear();
-
-}
-
 #if (defined(WIN32) || defined(_WIN32) || defined(__WIN32__))
 struct tm* localtime_r(time_t const* time, struct tm *result)
 {