Everywhere: Make use of container version of all_of

Problem:
- New `all_of` implementation takes the entire container so the user
  does not need to pass explicit begin/end iterators. This is unused
  except is in tests.

Solution:
- Make use of the new and more user-friendly version where possible.

Userland/Libraries/LibWeb/Cookie/ParsedCookie.cpp

@@ -231,7 +231,7 @@ Optional<Core::DateTime> parse_date_time(StringView date_string)
     unsigned year = 0;
 
     auto to_uint = [](StringView token, unsigned& result) {
-        if (!all_of(token.begin(), token.end(), isdigit))
+        if (!all_of(token, isdigit))
             return false;
 
         if (auto converted = token.to_uint(); converted.has_value()) {