Move TextComponent.ofChildren(ComponentLike...) into Component

[kezz]

In line with the rest of the API having static methods on Component, this one should also live in Component and just return a Component instead of a TextComponent.

[zml2008]

hmm, i'd thought about this but got stuck on what to call the method in Component -- wrap? of, text(List<? extends ComponentLike>)?

[kezz]

could be part of #344 or maybe another collector method? otherwise, maybe joinAsSiblings or something?

[kezz]

Actually, it's worth noting that Component.join(JoinConfig.noSeparators(), components) would be functionally identical to the ofChildren method. My vote would be to just deprecate this method alongside #344 and mark the new JoinConfig system as the replacement.