Fix collisions in UITextView for onPress events

[haileyok]

Right now, we find the pressed string's indices in the NSAttributedString with fullText.range(of: childText). However, we are not taking into account situations where there may be duplicate strings as in the screenshot below. Each of these has a different onPress handler, and the press location will not be the same. However, we are not offsetting the search as we loop through each child.

Instead, we need to save the last offset and apply that to the search, like so:

let range = fullText.range(of: childText, options: [], range: startIndex..<fullText.endIndex)

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-02-28.at.08.28.52.mp4