### 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 (selection_drag_attempt) {
					selection_drag_attempt = false;
					if (is_editable() && !Input::get_singleton()->is_key_pressed(Key::CTRL)) {
						delete_selection();
					} else if (deselect_on_focus_loss_enabled) {
						deselect();
					}
				}
			} else {
				selection_drag_attempt = false;
			}
			drag_action = false;
			drag_caret_force_displayed = false;
		} break;
	}
}
void TextEdit::unhandled_key_input(const Ref<InputEvent> &p_event) {
	Ref<InputEventKey> k = p_event;
	if (k.is_valid()) {
		if (!k->is_pressed()) {
			return;
		}
		
		if (has_focus() && editable && (k->get_unicode() >= 32)) {
			handle_unicode_input(k->get_unicode());
			accept_event();
		}
	}
}
bool TextEdit::alt_input(const Ref<InputEvent> &p_gui_input) {