### Godot version

Godot 4.0 statble

### System information

Windows 10

### Issue description

TextEdit boundary wrapmode not works, it only removes the horizontal scrollbar

### Steps to reproduce

Add a textedit in editor, set  the wrap mode to boundary, type something.

### Minimal reproduction project

![image](https://user-images.githubusercontent.com/9168814/224538077-2efb4e67-8976-496e-9223-c460365ecc28.png)
![image](https://user-images.githubusercontent.com/9168814/224538084-af773b86-d73a-4e8b-9b66-a0fb4bde1168.png)

dragging_selection = true;
	Point2 mp = get_local_mouse_pos();
	Point2i pos = get_line_column_at_pos(mp);
	int line = pos.y;
	int col = pos.x;
	int caret_idx = carets.size() - 1;
	int caret_pos = CLAMP(col, 0, text[line].length());
	int beg = caret_pos;
	int end = beg;
	PackedInt32Array words = TS->shaped_text_get_word_breaks(text.get_line_data(line)->get_rid());
	for (int i = 0; i < words.size(); i = i + 2) {
		if ((words[i] < caret_pos && words[i + 1] > caret_pos) || (i == words.size() - 2 && caret_pos == words[i + 1])) {
			beg = words[i];
			end = words[i + 1];
			break;
		}
	}