### 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)

}
		
		bool is_commented = true;
		for (int line = from; line <= to; line++) {
			if (!text_editor->get_line(line).begins_with(delimiter)) {
				is_commented = false;
				break;
			}
		}
		
		Vector<int> caret_cols;
		Vector<int> selection_to_cols;
		for (const int &c2 : caret_edit_order) {
			if (text_editor->get_caret_line(c2) >= from && text_editor->get_caret_line(c2) <= to) {
				caret_cols.append(text_editor->get_caret_column(c2));
			}
			if (text_editor->has_selection(c2) && text_editor->get_selection_to_line(c2) >= from && text_editor->get_selection_to_line(c2) <= to) {
				selection_to_cols.append(text_editor->get_selection_to_column(c2));
			}
		}
		
		for (int line = from; line <= to; line++) {
			String line_text = text_editor->get_line(line);
			if (line_text.strip_edges().is_empty()) {
				text_editor->set_line(line, delimiter);
				continue;
			}
			if (is_commented) {
				text_editor->set_line(line, line_text.substr(delimiter.length(), line_text.length()));
				continue;