LibJS+LibUnicode: Make the collation punctation default locale-aware

Author: https://github.com/trflynn89
Commit: 78625c746d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1078
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibUnicode/Collator.h

@@ -44,7 +44,7 @@ public:
         Sensitivity,
         CaseFirst,
         bool numeric,
-        bool ignore_punctuation);
+        Optional<bool> ignore_punctuation);
 
     virtual ~Collator() = default;
 
@@ -55,6 +55,8 @@ public:
     };
     virtual Order compare(StringView, StringView) const = 0;
 
+    virtual bool ignore_punctuation() const = 0;
+
 protected:
     Collator() = default;
 };