Some fixes / tweaks found during testing

* clear setup URLs
* renamed to CInfoArea::connectTopLevelChanged()
* qss, margins for menu items

src/blackcore/setupreader.cpp

@@ -65,6 +65,8 @@ namespace BlackCore
         }
         else
         {
+            this->m_bootstrapUrls.clear(); // clean up previous values
+
             // web URL
             if (!this->m_bootsrapUrlFileValue.isEmpty())
             {

src/blackgui/infoarea.cpp

@@ -45,7 +45,7 @@ namespace BlackGui
 
         this->ps_setDockArea(Qt::TopDockWidgetArea);
         this->iniFileBasedSettings();
-        this->connectAllWidgets();
+        this->connectTopLevelChanged();
         this->setFeaturesForDockableWidgets(QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable);
         this->tabifyAllWidgets();
 
@@ -522,7 +522,7 @@ namespace BlackGui
         return areaIndex >= 0 && areaIndex < this->m_dockWidgetInfoAreas.size();
     }
 
-    void CInfoArea::connectAllWidgets()
+    void CInfoArea::connectTopLevelChanged()
     {
         for (CDockWidgetInfoArea *dw : this->m_dockWidgetInfoAreas)
         {

src/blackgui/infoarea.h

@@ -189,7 +189,7 @@ namespace BlackGui
         void setTabPixmaps();
 
         //! Connect all widgets
-        void connectAllWidgets();
+        void connectTopLevelChanged();
 
         //! Margins for the floating widgets
         void setMarginsWhenFloating(int left, int top, int right, int bottom);

src/blackgui/qss/stdwidget.qss

@@ -333,13 +333,13 @@ QColorDialog {
 QMenuBar {
   background-image: url(:/textures/icons/textures/texture-outer.jpg);
   background-color: darkslategray;
-  padding: 0px 0px 0px 10px;
+  padding: 5px 0px 0px 10px;
   margin: 0px 0px 20px 0px; /* removes overlapping bar in frameless mode, why bottom margin helps here, no idea, bug? */
 }
 
 QMenuBar::item {
-  spacing: 3px; /* spacing between menu bar items */
-  padding: 1px 4px;
+  spacing: 5px; /* spacing between menu bar items */
+  padding: 3px 3px;
   background: transparent;
   border-radius: 4px;
 }
@@ -356,7 +356,11 @@ QMenu {
   border: 2px solid darkslategray; /* reserve space for selection border */
   background: lightgray;
   color: black;
-  padding: 2px;
+  padding: 3px;
+}
+
+QMenu::item {
+  padding: 4px 25px 4px 20px;
 }
 
 QScrollArea {