### 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 (!tooltip_callback.is_valid()) {
		return Control::get_tooltip(p_pos);
	}
	Point2i pos = get_line_column_at_pos(p_pos);
	int row = pos.y;
	int col = pos.x;
	String s = text[row];
	if (s.length() == 0) {
		return Control::get_tooltip(p_pos);
	}
	int beg, end;
	if (select_word(s, col, beg, end)) {
		Variant args[1] = { s.substr(beg, end - beg) };
		const Variant *argp[] = { &args[0] };
		Callable::CallError ce;
		Variant ret;
		tooltip_callback.callp(argp, 1, ret, ce);
		ERR_FAIL_COND_V_MSG(ce.error != Callable::CallError::CALL_OK, "", "Failed to call custom tooltip.");
		return ret;
	}
	return Control::get_tooltip(p_pos);
}
void TextEdit::set_tooltip_request_func(const Callable &p_tooltip_callback) {