### 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)

if (p_key.length() == 0) {
		return Point2(-1, -1);
	}
	ERR_FAIL_INDEX_V(p_from_line, text.size(), Point2i(-1, -1));
	ERR_FAIL_INDEX_V(p_from_column, text[p_from_line].length() + 1, Point2i(-1, -1));
	
	int line = p_from_line;
	int pos = -1;
	for (int i = 0; i < text.size() + 1; i++) {
		if (line < 0) {
			line = text.size() - 1;
		}
		if (line == text.size()) {
			line = 0;
		}
		String text_line = text[line];
		int from_column = 0;
		if (line == p_from_line) {
			if (i == text.size()) {
				
				if (p_search_flags & SEARCH_BACKWARDS) {
					from_column = text_line.length();
				} else {
					from_column = 0;
				}
			} else {
				from_column = p_from_column;
			}
		} else {