### Godot version

v4.1.stable.official [970459615]

### System information

Godot v4.1.stable - Pop!_OS 22.04 LTS - Vulkan (Compatibility) - NVIDIA GeForce MX350 (nvidia; 525.116.04) - 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz (8 Threads)

### Issue description

When I use the color picker to change a color, I can paste an HTML color code or write it myself. I can also prefix my text with a `#`  &mdash; the color picker will accept it as a valid color and update the corresponding element with that color. This is especially useful when I copy an HTML color code from a color palette like the one on lospec.com, since they always have a hash in front of them.

However, I cannot paste HTML color codes with surrounding spaces into this text box, even though the color code (without the spaces) is valid.

I would definitely call this behaviour a bug, since other programs like Affinity Designer, Blender or Gimp are very permissive about the input of HTML color codes. Or according to Jon Postel, *Be conservative in what you send, be liberal in what you accept.*

### Steps to reproduce

Preparation: 

1. create a new Godot project
2. create a new 2d scene
3. add a ColorRect node.
4. open the color picker for the color attribute in the inspector tab.

Explore the bug:

1. enter a valid HTML color code like `000` (black) => color is updated.
2. enter a valid HTML color code like `#fff` (white) => color is updated.
3. enter a valid HTML color code with leading space, for example `   #000` => color is not updated.
4. enter a valid HTML color code like `#000`(black) => color is updated.
5. enter a valid HTML color code with surrounding spaces, e.g. `   fff   ` => color is not updated.
6. enter a valid HTML color code like `fff`=> color is updated.

### Minimal reproduction project

N/A
bool text_visible = true;
	if (text_is_constructor) {
		String t = "Color(" + String::num(color.r, 3) + ", " + String::num(color.g, 3) + ", " + String::num(color.b, 3);
		if (edit_alpha && color.a < 1) {
			t += ", " + String::num(color.a, 3) + ")";
		} else {
			t += ")";
		}
		c_text->set_text(t);
	}
	if (color.r > 1 || color.g > 1 || color.b > 1 || color.r < 0 || color.g < 0 || color.b < 0) {
		text_visible = false;
	} else if (!text_is_constructor) {
		c_text->set_text(color.to_html(edit_alpha && color.a < 1));
	}
	text_type->set_visible(text_visible);
	c_text->set_visible(text_visible);
}
void ColorPicker::_sample_input(const Ref<InputEvent> &p_event) {
	const Ref<InputEventMouseButton> mb = p_event;
	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
		const Rect2 rect_old = Rect2(Point2(), Size2(sample->get_size().width * 0.5, sample->get_size().height * 0.95));
		if (rect_old.has_point(mb->get_position())) {
			
			set_pick_color(old_color);
			emit_signal(SNAME("color_changed"), color);
		}
	}
}
void ColorPicker::_sample_draw() {