### Godot version

v4.1.beta.custom_build [d3651ea45]

### System information

Windows 11

### Issue description

![1](https://github.com/godotengine/godot/assets/28705694/15c14c93-7ad7-425a-8fb0-bef841b75527)

It's not possible to start text selection on a SpinBox when it's unfocused.

Note: After a bit of digging in the code, I found that clicking on a SpintBox doesn't trigger `SpinBox::gui_input` no matter if it's focused or not. However, releasing mouse left button does trigger the function.

### Steps to reproduce

See the gif.

### Minimal reproduction project

It's simple to reproduce.
return caret_mid_grapheme_enabled;
}
bool LineEdit::is_caret_blink_enabled() const {
	return caret_blink_enabled;
}
void LineEdit::set_caret_blink_enabled(const bool p_enabled) {
	if (caret_blink_enabled == p_enabled) {
		return;
	}
	caret_blink_enabled = p_enabled;
	set_process_internal(p_enabled);
	draw_caret = !caret_blink_enabled;
	if (caret_blink_enabled) {
		caret_blink_timer = 0.0;
	}
	queue_redraw();
	notify_property_list_changed();
}
bool LineEdit::is_caret_force_displayed() const {
	return caret_force_displayed;
}
void LineEdit::set_caret_force_displayed(const bool p_enabled) {
	if (caret_force_displayed == p_enabled) {
		return;
	}
	caret_force_displayed = p_enabled;
	_validate_caret_can_draw();
	queue_redraw();
}
float LineEdit::get_caret_blink_interval() const {