Cannot select single words on first attempt in text with headings or blockquotes on iOS

[QichenZhu]

When attempting to select a single word in text that contains headings or blockquotes, the selection does not work on the first try.

Video

new_issue.mp4

[QichenZhu]

@tomekzaw I came across this while testing Expensify/App#44495, and my PR doesn't fix it, so I reported this new issue. Still, I believe the root cause and solution might be similar.

[tomekzaw]

This problem is particularly visible when typing fast inside the component that contains blockquotes:

Bold	Blockquote
bold.mp4	blockquote.mp4

I believe the problem is caused by NSMutableParagraphStyle. The problem no longer exists when I remove NSMutableParagraphStyle (but obviously there's no padding then). Also, it helps when I make the MarkdownTextInput component uncontrolled. Finally, making the JS thread busy also improves the behavior.