### 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 (cl == 0 && get_line_count() > 1) {
			_remove_text(cl, 0, cl + 1, 0);
			adjust_carets_after_edit(caret_idx, cl, 0, cl + 1, text[cl].length());
		} else {
			_remove_text(cl, 0, cl, text[cl].length());
			set_caret_column(0, false, caret_idx);
			backspace(caret_idx);
			set_caret_line(get_caret_line(caret_idx) + 1, caret_idx == 0, 0, 0, caret_idx);
		}
		
		int diff_indent = indent_level - get_indent_level(get_caret_line(caret_idx));
		cc += diff_indent;
		if (diff_indent != 0) {
			cc += diff_indent > 0 ? -1 : 1;
		}
		
		set_h_scroll(hscroll);
		set_caret_column(cc, caret_idx == 0, caret_idx);
	}
	
	carets_to_remove.sort();
	for (int i = carets_to_remove.size() - 1; i >= 0; i--) {
		remove_caret(carets_to_remove[i]);
	}
	end_complex_operation();
	String clipboard_string = clipboard.as_string();
	DisplayServer::get_singleton()->clipboard_set(clipboard_string);
	cut_copy_line = clipboard_string;
}
void TextEdit::_copy_internal(int p_caret) {