### 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)

SIGNAL_CHECK("text_changed", empty_signal_args);
			SIGNAL_CHECK("caret_changed", empty_signal_args);
			SIGNAL_CHECK_FALSE("text_set");
			text_edit->select(0, 0, 0, text_edit->get_line(0).length());
			CHECK(text_edit->has_selection());
			lines_edited_args.push_back(args1.duplicate());
			text_edit->set_editable(false);
			text_edit->insert_text_at_caret("new line");
			MessageQueue::get_singleton()->flush();
			CHECK(text_edit->get_text() == "new line\nswap");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == text_edit->get_line(0).size() - 1);
			CHECK_FALSE(text_edit->has_selection());
			SIGNAL_CHECK("lines_edited_from", lines_edited_args);
			SIGNAL_CHECK("text_changed", empty_signal_args);
			SIGNAL_CHECK("caret_changed", empty_signal_args);
			SIGNAL_CHECK_FALSE("text_set");
			text_edit->set_editable(true);
			text_edit->undo();
			MessageQueue::get_singleton()->flush();
			CHECK(text_edit->get_text() == "temidsting\nswap");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == 5);
			CHECK(text_edit->has_selection());
			SIGNAL_CHECK("lines_edited_from", lines_edited_args);
			SIGNAL_CHECK("text_changed", empty_signal_args);
			SIGNAL_CHECK("caret_changed", empty_signal_args);
			SIGNAL_CHECK_FALSE("text_set");
			text_edit->redo();
			MessageQueue::get_singleton()->flush();