fix clang warnings

--improve readability of the build process when
using clang by fixing small things to not show
some warnings

app/dockconfigview.cpp

@@ -388,7 +388,7 @@ void DockConfigView::updateLaunchersForGroup(int groupInt)
     //! as a start point
     if (dockCorona && dockCorona->layoutManager() && dockCorona->layoutManager()->currentLayout()) {
         if ((group == Dock::LayoutLaunchers && dockCorona->layoutManager()->currentLayout()->launchers().isEmpty())
-            || group == Dock::GlobalLaunchers && dockCorona->universalSettings()->launchers().isEmpty()) {
+            || (group == Dock::GlobalLaunchers && dockCorona->universalSettings()->launchers().isEmpty())) {
 
             Plasma::Containment *c = m_dockView->containment();
 

app/dockcorona.cpp

@@ -425,6 +425,10 @@ QRegion DockCorona::availableScreenRegion(int id) const
                     }
 
                     break;
+
+                default:
+                    //! bypass clang warnings
+                    break;
             }
         }
     }
@@ -477,6 +481,10 @@ QRect DockCorona::availableScreenRect(int id) const
                 case Plasma::Types::BottomEdge:
                     available.setBottomLeft({available.x(), dockRect.top()});
                     break;
+
+                default:
+                    //! bypass clang warnings
+                    break;
             }
         }
     }

app/dockview.cpp

@@ -568,6 +568,10 @@ QRect DockView::maximumNormalGeometry()
 
             maxGeometry.setRect(xPos, yPos, maxWidth, maxHeight);
             break;
+
+        default:
+            //! bypass clang warnings
+            break;
     }
 
     //! this is needed in order to preserve that the top dock will be above