Fix skipped LocalizationUtils.detectCultureCode test

[brandongregoryscott]

There's one test that was added and skipped due to time constraints. I believe the test case itself is valid, and should be accounted for, but the test setup may be incorrect.

The basic idea is:

detectCultureCode should set & return the culture code by priority/validity of the format.

1. If the culture code is available in the first path index, and it matches the culture code format, use that.
2. If the culture code is already set as the current culture code, don't change it again - just return it.

https://github.com/AndcultureCode/AndcultureCode.JavaScript.Core/blob/f537b50529ef9c84cce59c1c1f4da1639c101095/src/utilities/localization-utils.test.ts#L264-L279