### Godot version

v4.2.dev4.official [549fcce5f]

### System information

Godot v4.2.dev4 - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 6GB (NVIDIA; 31.0.15.3640) - Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (4 Threads)

### Issue description

If the folder has assigned a color, the color is reset to default when the folder name is changed. Also subfolder colors are reset.

Also moving a folder resets its and its subfolders' colors.

I would expect that renaming or moving doesn't rest the folder color. Especially if you have a large folder structure with many folder levels and assigned colors, it is a unfortunate to have all colors reset if the top level folder is renamed.

### Steps to reproduce

1. Create folder structure 

```
level1
	level2
		level3
```

2. Set folder colors to `level1` and `level2.`

3. Rename `level1` to `foobar` 

-> All folders are now using the default color.


### Minimal reproduction project

N/A
toolbar_hbc->add_child(current_path_line_edit);
	button_reload = memnew(Button);
	button_reload->connect("pressed", callable_mp(this, &FileSystemDock::_rescan));
	button_reload->set_focus_mode(FOCUS_NONE);
	button_reload->set_tooltip_text(TTR("Re-Scan Filesystem"));
	button_reload->hide();
	toolbar_hbc->add_child(button_reload);
	button_toggle_display_mode = memnew(Button);
	button_toggle_display_mode->set_toggle_mode(true);
	button_toggle_display_mode->connect("toggled", callable_mp(this, &FileSystemDock::_toggle_split_mode));
	button_toggle_display_mode->set_focus_mode(FOCUS_NONE);
	button_toggle_display_mode->set_tooltip_text(TTR("Toggle Split Mode"));
	button_toggle_display_mode->set_flat(true);
	toolbar_hbc->add_child(button_toggle_display_mode);
	toolbar2_hbc = memnew(HBoxContainer);
	toolbar2_hbc->add_theme_constant_override("separation", 0);
	top_vbc->add_child(toolbar2_hbc);
	tree_search_box = memnew(LineEdit);
	tree_search_box->set_h_size_flags(SIZE_EXPAND_FILL);
	tree_search_box->set_placeholder(TTR("Filter Files"));
	tree_search_box->connect("text_changed", callable_mp(this, &FileSystemDock::_search_changed).bind(tree_search_box));
	toolbar2_hbc->add_child(tree_search_box);
	tree_button_sort = _create_file_menu_button();
	toolbar2_hbc->add_child(tree_button_sort);
	file_list_popup = memnew(PopupMenu);
	add_child(file_list_popup);
	tree_popup = memnew(PopupMenu);
	add_child(tree_popup);
	split_box = memnew(VSplitContainer);
	split_box->set_v_size_flags(SIZE_EXPAND_FILL);