Collapse all tools on first start (fixes #4776)

I had to remove the `isVisible` check in `MyExpander::set_expanded()`
because it would trigger in Wavelet and Retinex for unknown reasons.

One inner expander in CIECAM isn't covered by the tool states, and the
way they are distributed to Wavelet and Retinex won't allow for further
tool states in those tools. We should consider to move the tool states
for sub-tools (like Wavelet, Retinex, and CIECAM) to seperate keys in
the `options` file.

rtgui/guiutils.cc

@@ -826,12 +826,6 @@ void MyExpander::set_expanded( bool expanded )
         return;
     }
 
-    bool isVisible = expBox->is_visible();
-
-    if (isVisible == expanded) {
-        return;
-    }
-
     if (!useEnabled) {
         if (expanded ) {
             statusImage->set(openedImage->get_surface());