[Fabric] Nesting of components within Text should be supported, but isn't

[chrisglein]

seems like even on fabric, i still get this message :(

Originally posted by @SupertigerDev in https://github.com/microsoft/react-native-windows/discussions/12944#discussioncomment-9234829

On Paper we had this: #6315 With Fabric the restrictions we had shouldn't be the same and this should be implemented, but reports are that it does not work. We probably don't have test coverage for this, because it didn't work on Paper, but we should add coverage.

[SupertigerDev]

Sighs, will this ever get looked at? I feel like its gonna be here for yeaars with no progress 😔 I really struggle with xml and native c# development, and i need this feature