### 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
List<Color>::Element *e = presets.find(p_color);
	if (e) {
		presets.move_to_back(e);
		preset_cache.move_to_back(preset_cache.find(p_color));
		preset_container->move_child(preset_group->get_pressed_button(), preset_container->get_child_count() - 1);
	} else {
		presets.push_back(p_color);
		preset_cache.push_back(p_color);
		_add_preset_button(_get_preset_size(), p_color);
	}
#ifdef TOOLS_ENABLED
	if (editor_settings) {
		PackedColorArray arr_to_save = get_presets();
		editor_settings->call(SNAME("set_project_metadata"), "color_picker", "presets", arr_to_save);
	}
#endif
}
void ColorPicker::add_recent_preset(const Color &p_color) {