fix(color): fullscreen widget exit when entered via keys

Related #2182

radio/src/gui/colorlcd/widget.cpp

@@ -86,6 +86,11 @@ void Widget::onEvent(event_t event)
 }
 #endif
 
+void Widget::onCancel()
+{
+  if (!fullscreen) Button::onCancel();
+}
+
 void Widget::update()
 {
   auto container = dynamic_cast<WidgetsContainer*>(parent);

radio/src/gui/colorlcd/widget.h

@@ -108,6 +108,7 @@ class Widget : public Button
     uint32_t focusGainedTS = 0;
     bool fullscreen = false;
 
+    void onCancel() override;
     void onLongPress() override;
     virtual void onFullscreen(bool enable) {}
 };