### 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)

text_edit->add_selection_for_next_occurrence();
			CHECK(text_edit->get_caret_count() == 3);
			CHECK(text_edit->get_selected_text(2) == "test");
			CHECK(text_edit->get_selection_from_line(2) == 2);
			CHECK(text_edit->get_selection_from_column(2) == 9);
			CHECK(text_edit->get_selection_to_line(2) == 2);
			CHECK(text_edit->get_selection_to_column(2) == 13);
			CHECK(text_edit->get_caret_line(2) == 2);
			CHECK(text_edit->get_caret_column(2) == 13);
			text_edit->add_selection_for_next_occurrence();
			CHECK(text_edit->get_caret_count() == 4);
			CHECK(text_edit->get_selected_text(3) == "test");
			CHECK(text_edit->get_selection_from_line(3) == 3);
			CHECK(text_edit->get_selection_from_column(3) == 5);
			CHECK(text_edit->get_selection_to_line(3) == 3);
			CHECK(text_edit->get_selection_to_column(3) == 9);
			CHECK(text_edit->get_caret_line(3) == 3);
			CHECK(text_edit->get_caret_column(3) == 9);
			
			text_edit->add_caret(2, 1);
			text_edit->select(2, 0, 2, 4, 4);
			CHECK(text_edit->get_selected_text(4) == "rand");
			text_edit->add_selection_for_next_occurrence();
			CHECK(text_edit->get_caret_count() == 6);
			CHECK(text_edit->get_selected_text(5) == "rand");
			CHECK(text_edit->get_selection_from_line(5) == 3);
			CHECK(text_edit->get_selection_from_column(5) == 18);
			CHECK(text_edit->get_selection_to_line(5) == 3);
			CHECK(text_edit->get_selection_to_column(5) == 22);
			CHECK(text_edit->get_caret_line(5) == 3);