### 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 (Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT) && get_selection_mode() != SelectionMode::SELECTION_MODE_NONE) {
		switch (get_selection_mode()) {
			case SelectionMode::SELECTION_MODE_POINTER: {
				_update_selection_mode_pointer();
			} break;
			case SelectionMode::SELECTION_MODE_WORD: {
				_update_selection_mode_word();
			} break;
			case SelectionMode::SELECTION_MODE_LINE: {
				_update_selection_mode_line();
			} break;
			default: {
				break;
			}
		}
	} else {
		click_select_held->stop();
	}
}
void TextEdit::_update_selection_mode_pointer() {