Fixes text binding update

[miguel-arrf]

Description

The STTextViewDelegate textDidChange function changed to textViewDidChangeText. Without this change, the text binding value wasn't updated.

Before, in a situation like the one below, the prompt variable was never updated since the delegate function was not called because of the mismatched signature.

@State var prompt: String = "..." (...) CodeEditTextView( $prompt, language: .default, theme: $theme, font: $font, tabWidth: $tabWidth, lineHeight: $lineHeight, wrapLines: .constant(true), editorOverscroll: $editorOverscroll ) .onChange(of: prompt, perform: { promptUpdate in print(promptUpdate) }) 

With the proposed update, the behaviour is as expected. The onChange is now triggered.

The STTextViewDelegate: https://github.com/krzyzanowskim/STTextView/blob/main/Sources/STTextView/STTextViewDelegate.swift

Checklist

• I read and understood the contributing guide as well as the code of conduct
• The issues this PR addresses are related to each other
• My changes generate no new warnings
• My code builds and runs on my machine
• My changes are all related to the related issue above
• I documented my code