Rich Text Formatting in Message Composer -React Native Uikit

Introduce the ability to apply rich text formatting (e.g., bold, italics, underline, unordered lists, etc.) selectively within individual messages in the React Native UIKit Message Composer.

This feature would allow users to format specific words or phrases within a message before sending, improving readability and enabling better expression. Importantly, formatting should be applied at a granular level (word or phrase), without altering the styling of the entire message.