LibWeb: Include sign in token debug info, if the type has explicit sign

Author: https://github.com/stelar7
Commit: https://github.com/SerenityOS/serenity/commit/2b3c07f4ad
Pull-request: https://github.com/SerenityOS/serenity/pull/13966
Reviewed-by: https://github.com/AtkinsSJ ✅

Userland/Libraries/LibWeb/CSS/Parser/Token.cpp

@@ -106,7 +106,7 @@ String Token::to_debug_string() const
     case Type::Delim:
         return String::formatted("Delim: {}", m_value);
     case Type::Number:
-        return String::formatted("Number: {} (number_type: {})", m_number_value.value(), m_number_value.is_integer() ? "Integer" : "Number");
+        return String::formatted("Number: {}{} (number_type: {})", m_number_value.value() > 0 && m_number_value.is_integer_with_explicit_sign() ? "+" : "", m_number_value.value(), m_number_value.is_integer() ? "Integer" : "Number");
     case Type::Percentage:
         return String::formatted("Percentage: {}% (number_type: {})", percentage(), m_number_value.is_integer() ? "Integer" : "Number");
     case Type::Dimension: