Inherit default locale and timezone annotations

[beatngu13]

Relates to #456.

Proposed commit message:

Inherit default locale and timezone annotations (#456 / TBA)

`@DefaultLocale` and `@DefaultTimeZone` are now `@Inherited`.

Relates to: #456
PR: #615 

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[Bukama]

Clear in docs too 👍

[Michael1993]

Do we need to update site documentation?

[beatngu13]

Probably a good idea, will update the site docs, too.

[Bukama]

Thanks again. We can merge if you want.