### Godot version

4.0 stable

### System information

Manjaro Linux, kernel 6.1.1-1-MANJARO, AMD Ryzen 5 3600, AMD RX 580

### Issue description

The `wrap_mode` property of the `TextEdit` node doesn't seem to really do anything. Setting it to `LINE_WRAPPING_BOUNDARY` simply means that there won't be an horizontal scrollbar if the text overshoots the boundary, instead of actually forcing the text to the next line so that it stays visible.

### Steps to reproduce

Create a TextEdit node and set its `wrap_mode` property to `LINE_WRAPPING_BOUNDARY`

### Minimal reproduction project

[WrapBugDemo.zip](https://github.com/godotengine/godot/files/10875969/WrapBugDemo.zip)

if (GDVIRTUAL_CALL(_cut, p_caret)) {
		return;
	}
	_cut_internal(p_caret);
}
void TextEdit::copy(int p_caret) {
	if (GDVIRTUAL_CALL(_copy, p_caret)) {
		return;
	}
	_copy_internal(p_caret);
}
void TextEdit::paste(int p_caret) {
	if (GDVIRTUAL_CALL(_paste, p_caret)) {
		return;
	}
	_paste_internal(p_caret);
}
void TextEdit::paste_primary_clipboard(int p_caret) {
	if (GDVIRTUAL_CALL(_paste_primary_clipboard, p_caret)) {
		return;
	}
	_paste_primary_clipboard_internal(p_caret);
}
PopupMenu *TextEdit::get_menu() const {
	if (!menu) {
		const_cast<TextEdit *>(this)->_generate_context_menu();
	}
	return menu;
}
bool TextEdit::is_menu_visible() const {