LibJS: Add define_direct_property and remove the define_property helper

This removes all usages of the non-standard define_property helper
method and replaces all it's usages with the specification required
alternative or with define_direct_property where appropriate.

Userland/Libraries/LibJS/Tests/builtins/Array/Array.prototype.shift.js

@@ -26,7 +26,7 @@ test("Issue #5884, GenericIndexedPropertyStorage::take_first() loses elements",
     const a = [];
     for (let i = 0; i < 300; i++) {
         // NOTE: We use defineProperty to prevent the array from using SimpleIndexedPropertyStorage
-        Object.defineProperty(a, i, { value: i, configurable: true });
+        Object.defineProperty(a, i, { value: i, configurable: true, writable: true });
     }
     expect(a.length).toBe(300);
     for (let i = 0; i < 300; i++) {