[Native] Add RCTSelectableText as a recognized Text component (#35780)

## Summary

Add "RCTSelectableText" to the list of component names recognized as
being inside a text element, alongside "RCTText".

React Native's new text stack, tries to optimize and allows
differentiating between a custom TextView, with lower level control,
that can reuse the work performed during Fabric/Yoga layout, and a
native TextView, used for fidelity. On Android at least, the only place
we've needed native TextView for fidelity/native UX has been support for
`selectable` text, which has many unique UI interactions.

## How did you test this change?

When I patch this in, alongside
https://github.com/facebook/react-native/pull/55552, we no longer see
warnings when we render text inside of RCTSelectableText component.

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Co-authored-by: Eli White <github@eli-white.com>